Combo · ENGINE

Four stunned attackers at 1 Might cost four damage in total, because 465.2.c.4 forbids spending a fifth on any of them

6 cards · calm + order · verified

Pieces

• Leona, Zealot ×1 OGN-079 · payoff · calm

  If an opponent's score is within 3 points of the Victory Score, I enter ready. Stunned enemy units here have -8 Might, to a minimum of 1 Might.

• Thwonk! ×2 SFD-040 · engine · calm

  [Action] (Play on your turn or in showdowns.) [Repeat] 2 Energy (You may pay the additional cost to repeat this spell's effect.) Stun an attacking unit. (It doesn't deal combat damage this turn.)

• Rune Prison ×2 OGN-050 · engine · calm

  [Action] (Play on your turn or in showdowns.) Stun a unit. (It doesn't deal combat damage this turn.)

• Facebreaker ×1 OGN-220 · engine · order

  [Hidden] (Hide now for 1 Power of any domain to react with later for 0 Energy.) [Action] (Play on your turn or in showdowns.) Stun a friendly unit and an enemy unit at the same battlefield. (They don't deal combat damage this turn.)

Payoff

Deck

• Leona, Zealot, Thwonk! and Rune Prison are Calm; Facebreaker is Order. A Calm legend runs the first three and a Calm/Order legend runs all four (103.1.b).
• This is a DEFENSIVE line: Leona must stand at a battlefield YOU control when the opponent attacks it, which is also the only kind of battlefield 811.1.b lets you hide a card at.

Prerequisites

• THE ENTRY IS 465.2.c.3 AND 465.2.c.4, AND NEITHER APPEARS IN leona-zealot-stun-might-collapse. That entry establishes the single-body fact - a stunned enemy standing with Leona is at 1 Might and dies to 1 damage. This one is what happens once SEVERAL of them are. 465.2.c.3: 'Units must have lethal damage assigned to them in full before damage is assigned to a different Unit.' 465.2.c.4: 'Units cannot have more damage assigned to them than the minimum required to constitute lethal damage unless no further units remain to have damage assigned to them.' So a 1 Might body may be assigned exactly 1, and the remainder is FORCED onto the next body. A force of summed Might M kills M stunned enemies at Leona's battlefield.
• HER -8 IS A PASSIVE ABILITY, SO IT DOES NOT SNAPSHOT. 477.3.b: 'When an arithmetic effect from a source that is not a passive ability has a limitation that applies, it is limited at the time of its application, and is remembered at that limited level for the duration of its effect. This process is called snapshotting.' Its own second worked example is this exact shape: 'A unit reads Units you control here have their Might increased to 5 [M]. This is a passive ability, so it will not snapshot.' The floor is therefore evaluated live, on each body, as it becomes stunned and as it stops. 477.3.e.2.a applies decreases last, so an enemy pump cannot outrun it.
• THE KILL THRESHOLD IS THE CURRENT NUMBER, WITH THE RULES' OWN WORKED EXAMPLE. 142.4.b: 'Lethal Damage for a Unit is a non-zero amount greater than or equal to that Unit's Might. Example: A unit has 5 [M] and 3 damage marked on it. Frigid Touch is played targeting that unit. When it resolves, the unit's Might becomes 3, and it will have lethal damage marked on it.' 710 says the same for board evaluation and 465.2.c.2 repeats it inside the damage step. 423.1.c fixes the bar at 'full might value'; Leona is what moves that value.
• THWONK! WORKS, AND #61 DOUBTED IT. 'Stun an attacking unit' needs the Attacker designation, which 807.1.d grants only 'during Combat'. The window exists: rule 464 is 'Step 1: The Combat Showdown Step', 464.2.c.3 assigns the designations at task 2 and 464.2.d hands out Focus only at task 3, so by the time anyone may act there are attacking units to choose. And 308.1 with 308.1.a put a Combat in a Showdown State, where [Action] is legal. On your OWN turn the attackers are yours, which is the second reason this line is defensive.
• [REPEAT] IS EXACTLY ONE EXTRA EXECUTION. 820.1.b makes it 'an optional cost that a player may pay to execute the effect of their spells and abilities a second time', 820.1.c.3 'Each Repeat Cost can be paid only a single time', and 820.2.a lets the second execution name a different target. Thwonk! is two stuns, once - not an engine.
• ARITHMETIC WITH THE QUANTITIES DECLARED. The opponent attacks Leona's battlefield with four bodies. Hidden Facebreaker (0 Energy, one of theirs and one of yours) plus Rune Prison (2 Energy + 1 Power) plus Thwonk! with its Repeat (2 + 2 Energy, two targets) = all four attackers stunned. Each is at 1 Might, each contributes 0 (423.1.b), and your defenders' summed Might (465.2.b) needs FOUR damage in total to kill all four - Leona alone is a 6. Price: one [A] the previous turn, 7 Energy and 1 Power out of runes you left ready, since 164.2.a makes a rune's Energy a [Reaction] but 167 and 415.3.a mean the runes had to be left unspent. A 10 Might attacker floors at 2, not 1, because the minimum is 1 and 10 minus 8 is 2 - count it as 2.
• SHE IS A TWO-TURN CARD UNLESS THE GAME IS ALREADY NEARLY LOST. 143.4 makes her enter exhausted, so she cannot pay the Standard Move's cost (144.2) the turn she lands, and 415.3.a readies her only in your next Awakening Phase. The one exception is her own first sentence, 'If an opponent's score is within 3 points of the Victory Score, I enter ready'. Her floor is worth nothing at your base: the text says 'here'.

Steps

1. Get Leona, Zealot to a battlefield you control (6 Energy + 1 Power). 143.4 makes her enter exhausted unless the opponent is already within 3 points of 8, so plan on the turn after.
2. On your turn, pay [A] to hide Facebreaker at that battlefield (811.1.b) and leave runes ready - 167 empties the pool at each Main Phase start, so the Energy for the opponent's turn is the Energy you did not spend.
3. The opponent attacks. Combat opens with the Combat Showdown Step (464.2); designations are assigned at 464.2.c.3 and Focus reaches you through 464.2.d then 347.2.b.
4. Stun the attackers: Facebreaker for 0, Rune Prison for 2 Energy + 1 Power, Thwonk! for 2 Energy plus 2 more for its Repeat on a second target. All are legal in this state by 308.1.a.
5. Each stunned attacker is now at 1 Might - 477.3.b exempts her passive ability from snapshotting, so it applies live, and 710 reads the current number.
6. In the damage step they contribute nothing (423.1.b) and your summed Might is assigned 1 per body, because 465.2.c.4 caps it at the minimum lethal and 465.2.c.3 forces the rest onto the next one.
7. At step 3d of the end of turn cleanup the stuns clear (423.1.a.2); 423.1.a.1 means the same bodies can be stunned again next turn, one card each.

Per iteration

every stunned attacker at Leona's battlefield costs exactly 1 damage to kill instead of its printed Might, and deals none back - so N stun cards convert N enemy bodies into N points of your defenders' summed Might

How it ends

engine only - the stun clears at cleanup 3d (423.1.a.2), 423.1.a.1 forbids re-stunning while it is on, one card is needed per body since no card in the pool stuns two enemies in one resolution, and nothing here gains a point

Sources

Published elsewhere

• Riftbound Core Rules, Last Updated 2026-07-16 (data/Riftbound-Core-Rules-2026-07-16.txt) 2026-07-16
• Lente de stun y exhaust enemigo - issue #61 (GitHub) 2026-09-06

Walked here, in this project

• Hand walk 2026-09-06 2026-09-06 record

Walked against Core Rules 2026-07-16

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