Combo · ENGINE
Three Fury cards read the same 'four or fewer runes' clause, and 164.2.b lets you meet it on purpose, at the price of the runes recycled
Pieces
- Protective Sands ×1
VEN-162 · battlefield
When you conquer here, if you control 4 or fewer runes, you may pay 1 Energy to draw 1.
- Eclipse Dragon ×3
VEN-016 · payoff · fury
[Accelerate] (You may pay 1 Energy + 1 Fury Power as an additional cost to have me enter ready.) When I move, if you control 4 or fewer runes, draw 1.
- Baccai Sandspinner ×3
VEN-001 · payoff · fury
[Empower] 5 Energy. This ability costs 3 Energy less if you control 4 or fewer runes. (Pay the cost: Empower me. Use only if not Empowered.) [Empowered][>] I have [Deflect] and [Assault 2]. (Opponents must pay 1 Power of any domain to choose me with a spell or ability. +2 Might while I'm an attacker.)
Payoff
Deck
- Eclipse Dragon and Baccai Sandspinner are both mono-Fury and Protective Sands is Colorless, so 103.1.b.3 admits any legend with Fury in its pair: UNL-185/UNL-228 Bloodharbor Ripper, VEN-141/VEN-190 Butcher of the Sands, OGN-247/OGN-299 Daughter of the Void, OGS-017 Dark Child - Starter, SFD-185/SFD-242 Glorious Executioner, OGN-253/OGN-302 Hand of Noxus, OGN-251/OGN-301 Loose Cannon, VEN-143/VEN-191 Master of Shadows, SFD-181/SFD-240 Mechanized Menace, UNL-187/UNL-229 Piltover Enforcer, UNL-183/UNL-227 Pridestalker, SFD-183/SFD-241 Purifier, OGN-249/OGN-300 Relentless Storm, VEN-139/VEN-189 Rogue Assassin, UNL-181/UNL-226 Virtuoso, SFD-187/SFD-243 Void Burrower.
Run play
Prerequisites
- 'FOUR OR FEWER RUNES' IS A TIMING CHOICE, NOT A DECKBUILDING CONSTRAINT, AND 164.2.b IS WHY IT IS FREE. A Basic Rune's second ability is 'Recycle this: [Reaction] — Add [C]' (164.2.b) and its cost is the RECYCLE, not an exhaust — so a rune you have already tapped for Energy this turn can still be dumped for a Power. 161.2.b sends it to the Rune Deck rather than the trash. So the sequence is: tap everything for Energy, spend it, then recycle down to four for Power, and the condition is true with all of that Power still live in the pool. CORRECTED 2026-10-26 (#473, from the run play docs/plays/2026-10-26-protective-sands-draws-once-on-turn-two-the-sandspinners-three-energy-cost-four-runes-and-the-dragon-cannot-be-cast.md): live in the pool only until the end of the turn (167, 167.1, quoted on step 3), and nothing in this package but [Accelerate] spends Power, so in the walk the four Power were lost. The timing choice holds; the Power is not a profit.
- AND 315.3.b REBUILDS AT TWO A TURN, which is the honest cost: every rune dumped is two turns of Channel Phase to replace, and 430.3 channels 'as many as possible' from a Rune Deck that recycling has been refilling. In the opening the condition is free — you control 2 runes after turn one and 4 after turn two — so this package is at its best early and has to be paid for later. CORRECTED 2026-10-24 (#456): two numbers here are off, in opposite directions. At two a turn N dumped runes take N/2 Channel Phases to rebuild the count, not two per rune. And 315.3.b's two come whether or not you dumped: 416.1 puts the dumped runes on the bottom of the Rune Deck (416.1.b) and 430.1 channels from the top, so against the undumped curve each dumped rune is short on every turn until the deck runs dry, which with only the Channel Phase's two a turn is T7 at the earliest going first (161.2.a, 315.3.b); each two more dumped push it a turn later, and a card that channels more (430.2) brings it back sooner. The 'four or fewer' condition this entry reads is unaffected; status unchanged.
- THE SIBLING CLAUSE CANNOT BE GAMED THE SAME WAY, and it is worth not confusing them: VEN-005 Forsaken Baccai and VEN-006 Oasis Raider read 'fewer runes than an opponent at the start of your Beginning Phase', which is 315.2.a — before 315.3.b channels two and before any Main Phase recycling. Those two are not in this entry for that reason.
- THE FAMILY IS EXACTLY THREE CARDS PLUS THIS BATTLEFIELD, all Fury, named so the count is refutable in one grep: VEN-001 Baccai Sandspinner, VEN-016 Eclipse Dragon, VEN-162 Protective Sands (and VEN-005 / VEN-006 on the different, ungameable clause). One deckbuilding decision turns on three payoffs.
- IT NEEDS A REPEATABLE CONQUER AT THIS BATTLEFIELD. 315.2.b.2's mandatory Hold plus 470 mean a conquer battlefield taken and kept fires exactly once; sprite-queen-targon-peak-conquer-cycle is the feed written for that, and unlike Sunken Temple this battlefield puts no Might condition on the conquering body, so a 3-Might Sprite satisfies it.
- PROTECTIVE SANDS IS NOT GUARANTEED TO BE ON THE TABLE: 485.4.a, 485.5, 486.5 and 103.4.c as for every battlefield entry.
- NO ANSWER WAS NAMED - ADDED 2026-10-26 (#473, from the run play docs/plays/2026-10-26-protective-sands-draws-once-on-turn-two-the-sandspinners-three-energy-cost-four-runes-and-the-dragon-cannot-be-cast.md). From the walked Calm/Order census (254 legal cards), not every deck's answers; the predicate is a card played by them with the runes they have that stops the Empowered Sandspinner taking their battlefield. Nothing stops the T2 draw: the move is not a spell and the trigger is an ability. The cheapest answer is one rune, recycled: VEN-034 Resonating Strike (Calm, E2 + 1 Calm Power: '[Hidden] (Hide now for :rb_rune_rainbow: to react with later for :rb_energy_0:.) [Reaction] (Play any time, even before spells and abilities resolve.) Choose a battlefield you control and a unit you control at a different location. Move that unit to that battlefield and give it +2 :rb_might: this turn.'), hidden at their battlefield the turn before (811.1.b), moves OGN-054 Sunlit Guardian ('[Shield] (+1 :rb_might: while I'm a defender.) [Tank] (I must be assigned combat damage first.)') in from their base. It becomes a defender at the next Cleanup, 464.2.c.3.a: 'If a Unit controlled by the Attacker or Defender becomes present at this Battlefield after this moment, it will gain the Attacker or Defender designation during the Cleanup phase following the action that caused it to become present, as appropriate for its controller.' With a Stalwart Poro there the battlefield defends at 9 and the Sandspinner (8 attacking) dies. From hand it is two runes: VEN-040 Decree of Focus and OGN-046 En Garde, or SFD-040 Thwonk! (Calm, E2, no Power), with none recycled, or VEN-126 Ki Barrier (Order, E2 + 1 Order Power) with one. The free answers are a garrison of 9 where it would attack, and not emptying Protective Sands. CORRECTED 2026-10-26 (#483, after #484 / PR #485): Thwonk! takes two runes with ONE recycled, not none, as the play's section 5 said. SFD-040 Thwonk!: '[Action] (Play on your turn or in showdowns.) [Repeat] :rb_energy_2: (You may pay the additional cost to repeat this spell's effect.) Stun an attacking unit. (It doesn't deal combat damage this turn.)' The attacking unit it chooses here is the Empowered VEN-001 Baccai Sandspinner ('[Empowered][>] I have [Deflect] and [Assault 2].'), and 809.1.c: 'It is functionally short for "Spells and abilities an opponent controls that target [me/this] cost an amount of Power equal to [Deflect Value] more to play as an additional cost for each time they choose [me/this]."' 809.1.b.3: 'If X is omitted, it is presumed to be 1.' 809.1.c.1: 'The Power used to pay this cost may always be of any Domain. Example: A Fury spell targets an Order unit with Deflect. The Power used to pay the Deflect cost can be any Domain; it does not need to match the Domain of the spell or the target.' So Thwonk! costs E2 plus 1 Power of any domain. Ki Barrier, and Decree of Focus with En Garde, are unaffected: each chooses a unit of the defending player's own.
Steps
- Bring Protective Sands as one of your three battlefields in a Fury shell running Eclipse Dragon and Baccai Sandspinner.
- In the opening the condition is already true: 315.3.b channels two runes a turn, so you control 2 after turn one and 4 after turn two. CORRECTED 2026-10-26 (#473, from the run play docs/plays/2026-10-26-protective-sands-draws-once-on-turn-two-the-sandspinners-three-energy-cost-four-runes-and-the-dragon-cannot-be-cast.md): true going first only. Going second you channel an extra rune on your first turn, 485.7: 'First Turn Process: The player going second channels an extra Rune from their Rune Deck during their first Channel Phase of the game.' So you control 3 after turn one and 5 after turn two, and a unit you play on turn one cannot conquer before turn two, 143.4: 'Units enter the Board exhausted.' Going second, the first Protective Sands draw costs a recycled rune.
- Later, in your Main Phase, tap the runes you need for Energy (164.2.a) and spend it; then recycle the surplus down to four with 164.2.b, whose cost is the recycle and not an exhaust, banking a Power for each. CORRECTED 2026-10-26 (#473, from the run play docs/plays/2026-10-26-protective-sands-draws-once-on-turn-two-the-sandspinners-three-energy-cost-four-runes-and-the-dragon-cannot-be-cast.md): the banked Power does not last. 167: 'Every player's Rune Pool empties at the start of each player's Main Phase and the end of each player's turn.' 167.1: 'Any unspent Energy or Power are lost.' Nothing in this package costs Power except the Dragon's [Accelerate], so in the walk the four Power the recycle added were lost.
- Conquer Protective Sands. Its trigger checks the rune count, you pay 1 Energy and draw 1. CORRECTED 2026-10-26 (#473, from the run play docs/plays/2026-10-26-protective-sands-draws-once-on-turn-two-the-sandspinners-three-energy-cost-four-runes-and-the-dragon-cannot-be-cast.md): once per time you take it. In the walk Protective Sands was conquered once, on T2, and held after; a Hold is not a conquer. 469.1: 'Conquer: A player gains Control of a Battlefield they did not yet Score this turn.' 469.2: 'Hold: A player maintains Control of a Battlefield they did not yet Score this turn during their Beginning Phase.' So this step comes again only after they empty it, which the fifth notable already says ('a conquer battlefield taken and kept fires exactly once').
- Standard-Move Eclipse Dragon in the same Main Phase for a second card, and pay Baccai Sandspinner's [Empower] at E2 instead of E5 — 441.2 makes that upgrade permanent, so it only has to be bought once while the condition holds. CORRECTED 2026-10-26 (#473, from the run play docs/plays/2026-10-26-protective-sands-draws-once-on-turn-two-the-sandspinners-three-energy-cost-four-runes-and-the-dragon-cannot-be-cast.md): Eclipse Dragon costs E8, and a Basic Rune gives one Energy (164.2.a: '[E]: [Reaction] — Add [1].'), so off runes alone it cannot be cast while you control four. Without [Accelerate] it cannot draw on the turn it is cast: it enters exhausted, 143.4: 'Units enter the Board exhausted.', and its Standard Move costs the exhaust, 144.2: 'Exhausting the Unit is the Cost for this action.' So its first draw comes on a later turn, and that turn needs the count at four or fewer: casting it takes 8 runes, so at least four are recycled between the cast and a draw, and five on the turn it lands with [Accelerate] (E9 and one Fury Power from 9 runes, down to 4). In the walk the T4 recycle for the Sandspinner left 6 runes on T5, so the Dragon could not be cast that turn. A Dragon cast on an earlier turn can share one recycle with the conquer and the [Empower]: on a 12-rune turn, all twelve exhausted and eight recycled pay for the Protective Sands draw, the Dragon's move draw and the E2 [Empower]. What the walk shows is narrower: the Dragon cannot be cast on a turn you hold four runes.
- 315.3.b channels two back at your next Channel Phase; 430.3 takes as many as the Rune Deck holds, which 161.2.b has been refilling. CORRECTED 2026-10-24 (#456): not at the next Channel Phase. A recycled rune goes to the bottom of the Rune Deck (416.1, 416.1.b) and 430.1 channels from the top, so it is back on T7 at the earliest going first and T6 at the earliest going second with only the Channel Phase's two a turn (161.2.a, 315.3.b, 485.7); each two more recycled push it a turn later, a card that channels more (430.2) brings it back sooner, and the next Channel Phase gives it back only once the Rune Deck is empty. The two this step channels are the top two, which come whether or not you dumped.
Per iteration
one card per Conquer and one per Eclipse Dragon move, plus a one-off 3 Energy off each Sandspinner's Empower, all off a single rune count CORRECTED 2026-10-26 (#473, from the run play docs/plays/2026-10-26-protective-sands-draws-once-on-turn-two-the-sandspinners-three-energy-cost-four-runes-and-the-dragon-cannot-be-cast.md): the 3 Energy are not free. In the walk the T4 recycle from 8 runes to 4 bought them, so the 3 Energy cost four runes off the board, short until they come back from the bottom of the Rune Deck (416.1.b, 430.1).
How it ends
engine only — free while the rune count is naturally low in the opening, and thereafter costing two Channel Phases per rune dumped; nothing here scores CORRECTED 2026-10-26 (#473, from the run play docs/plays/2026-10-26-protective-sands-draws-once-on-turn-two-the-sandspinners-three-energy-cost-four-runes-and-the-dragon-cannot-be-cast.md): 'two Channel Phases per rune dumped' was withdrawn by the 2026-10-24 correction to the second notable (#456). At two a turn N dumped runes take N/2 Channel Phases to rebuild the count, and against the undumped curve each dumped rune is short on every turn until it comes back from the bottom of the Rune Deck (416.1, 416.1.b; 430.1 channels from the top): back on T7 at the earliest going first and T6 at the earliest going second, with only the Channel Phase's two a turn (161.2.a, 315.3.b, 485.7); each two more recycled push it a turn later, and a card that channels more (430.2) brings it back sooner.
Sources
Published elsewhere
- Riftbound Core Rules, Last Updated 2026-07-16 (data/Riftbound-Core-Rules-2026-07-16.txt) 2026-07-16
Walked here, in this project
- Hand walk 2026-09-07 (docs/phase0/walks/2026-09-07-uncatalogued-cards.md), issue #171 2026-09-07 record
- Run play 2026-10-26, issue #466 2026-10-26 record
How this entry was audited
REFUTE = a refutation pass, with its date and verdict · WOUNDED = the pass found a flaw and the entry was rewritten · BUDGETED = the pass checked the recycle-and-draw ledger · lens = the hunt that proposed it.
HAND-WALKED 2026-09-07, issue #171 — the first entry to use VEN-162, VEN-016 or VEN-001. Card text verbatim from data/corpus_flat.txt. The three members of the gameable clause and the two members of the ungameable sibling are all NAMED so the family is refutable in one grep, per the #175 correction. The timing-choice reading is the project's own, restated here with the paragraph that carries it (164.2.b's cost is the recycle) and with the cost it glosses over stated explicitly: 315.3.b rebuilds at two a turn, so dumping is not free after the opening. Trap check: VEN-005 / VEN-006's 'at the start of your Beginning Phase' clause is 315.2.a and is excluded with the reason; 441.2 is cited so the Sandspinner rebate is counted once; the needs declaration is stated with 315.2.b.2 + 470 and contrasted with Sunken Temple's Might gate; exactly one battlefield is named, so 485.4.a is respected. CORRECTED 2026-10-24 (#456): dumping costs more than 'rebuilds at two a turn' says. 315.3.b's two come whether or not you dumped, and the dumped runes go to the bottom of the Rune Deck (416.1, 416.1.b; 430.1 channels from the top), so against the undumped curve they are short on every turn until the deck runs dry (see the corrected caveat). Status unchanged. REVISED 2026-10-26 (#473, from the run play docs/plays/2026-10-26-protective-sands-draws-once-on-turn-two-the-sandspinners-three-energy-cost-four-runes-and-the-dragon-cannot-be-cast.md): its Leads applied as dated notes on steps 2, 3, 4 and 5, terminatesIn, netPerIteration and the first notable, plus an ADDED notable for the answers. Re-checked against data/corpus_flat.txt and the 2026-07-16 Core Rules (143.4, 144.2, 161.2.a, 164.2.a, 167, 167.1, 315.3.b, 416.1, 416.1.b, 430.1, 430.2, 464.2.c.3.a, 469.1, 469.2, 485.7, 811.1.b). Each correction narrows a claim (one draw per conquer of A, the Dragon's draws need runes recycled, the banked Power is lost, the rebate costs runes); none removes what the entry catalogues (three cards and a battlefield reading one rune count, met on purpose by recycling), and in the walk it drew on T2 and bought the E2 [Empower], so it stays verified. No unruled reading. RENAMED 2026-10-26 (#483): was 'Three Fury cards read the same 'four or fewer runes' clause, and 164.2.b makes emptying the board a profit rather than a cost' (it said emptying the board is a profit). After #456 and #473 it is not: a recycled rune goes to the bottom of the Rune Deck (416.1.b) and 430.1 channels from the top, and the Power it adds is lost unless spent that turn (the #473 correction to step 3 quotes the rule), so the new name says recycling meets the clause at the price of the runes recycled. REVISED 2026-10-26 (#483): the Thwonk! price in the seventh notable is CORRECTED back to one recycled, because Thwonk! chooses the Empowered Sandspinner and its [Deflect] adds 1 Power of any domain (809.1.b.3, 809.1.c, 809.1.c.1, pasted there; #484 / PR #485 found the play's price right). Status unchanged: verified, because the rename weakens the headline and not the walked mechanism, and the price correction is to an answer, not to the line.
Walked against Core Rules 2026-07-16