Combo · ENGINE

Granting [Tank] to somebody ELSE is what keeps the body that only pays when it takes no damage

6 cards · calm · verified

Pieces

• Yuumi, Magical Cat ×3 UNL-056 · engine · calm

  When I attack or defend, give one of your other units here +3 Might and [Tank] this turn. (It must be assigned combat damage first.)

• Affectionate Poro ×3 VEN-024 · payoff · calm

  When a combat that I was in ends, if I haven't been dealt damage this turn, draw 1.

Payoff

Deck

• Both cards are mono-Calm, so 103.1.b.3 admits any legend with Calm in its pair.
• Neither card is banned or restricted in either format, and neither is a Signature card.
• A THIRD body at the same battlefield to wear the [Tank]. Yuumi's clause says 'one of your OTHER units', so she cannot grant it to herself, and granting it to the Poro would defeat the entry.

Run play

• Yuumi's grant is the +3, and one Flurry takes both

Prerequisites

• GRANTING [TANK] IS A TOLL BOOTH FOR EVERY OTHER BODY, WHICH IS THE POINT. 815.1.b: the unit 'must be assigned lethal damage before any other unit with the same controller as me that does not have [Tank] during the Combat Damage step', and 815.1.c.2: 'Units without Tank are invalid assignments until all units with Tank have lethal damage assigned to them.' So the Poro cannot legally be assigned a single point until the nominated body has taken lethal - and if the attacker's summed Might is short of that, the Poro takes NOTHING and draws.
• AND THE +3 IS WHAT MAKES THE TOLL EXPENSIVE ENOUGH. A 3 Might body wearing Yuumi's grant is a 6, so an attack summing 5 or less kills nobody at all (465.2.c.3 forces lethal onto one body in full before any goes elsewhere). The two halves of Yuumi's trigger are one effect for a reason: the keyword decides WHO is hit and the Might decides WHETHER anyone is. ADDED 2026-10-14 (#349): 5 or less is the SURVIVAL threshold, and the DRAW threshold is one higher. At exactly 6 all six go on the Tank in full (465.2.c.3), it dies, and 815.1.c.2 has kept every point off the Poro, so it draws. At 7 the seventh point has to go on another unit, by 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.' The assigning player chooses whether it lands on Yuumi or on the Poro, so at 7 the card is theirs to deny. So the Poro draws while the opposing Might is at most the Tank's Might after the grant.
• IT FIRES ON BOTH SIDES OF THE COMBAT, WHICH IS RARE. 'When I attack or DEFEND' - so the grant is available on the opponent's turn as well as yours, and 464.2.c.3 hands out both designations at the same moment. The Poro's own trigger is 'When a combat that I was in ends', which is equally side-agnostic; 740.2.c defines being in combat as occupying a battlefield where combat is ongoing and having a designation.
• THE CONDITION IS 'THIS TURN', NOT 'THIS COMBAT', AND THAT IS A REAL LIMIT. The Poro reads 'if I haven't been dealt damage this turn', so a ping earlier in the turn switches it off even if the combat itself was clean - and 143.3.b.2 heals during a Combat Cleanup, which does NOT undo the fact that damage was dealt. Against a pinger, this pair stops paying.
• YUUMI IS A 1 MIGHT BODY AND THAT IS THE PRICE. She contributes almost nothing to 465.2.c's summed Might, and 143.2.a means one point of the attacker's assignment removes her - after which the grant is gone for that turn but the ones already given stand ('this turn'). Keep her behind the Tank she nominated, which 815.1.c.2 does for free.
• WHAT IT IS NOT. Nothing here scores; 469 defines Scoring as Conquer or Hold. A PRINTED TANK STILL WANTS THE GRANT - CORRECTED 2026-10-14 (#349, from the run play docs/plays/2026-10-14-yuumis-grant-is-the-plus-three-and-one-flurry-takes-both.md). Until 2026-10-14 this notable said 815.2 makes a second [Tank] grant on the same body redundant, so a garrison that already contains a printed Tank wants Yuumi's grant 'elsewhere or not at all'. 815.2, 'Multiple instances of Tank are redundant.', removes only the keyword. The +3 is what raises the threshold: a Sunlit Guardian goes from 3 to 6 on attack and from 4 to 7 on defence ([Shield]). 'Not at all' is not on offer, since the trigger has no 'may'. In the three-body garrison step 1 builds, 'elsewhere' is the Poro itself, which the grant would make a legal first assignment (815.1.c.2, 'If more than one unit with Tank is present with the same controller in Combat, damage may be assigned to any of them.'). Grant it to the printed Tank. With a FOURTH body the choice is a real trade, which the play does not walk. Grant it to the fourth body and two Tanks stand in front of the Poro until both have lethal (815.1.c.2, 'Units without Tank are invalid assignments until all units with Tank have lethal damage assigned to them.'), which is the printed Tank's Might plus the fourth body's Might plus 3: 3 + 6 = 9 when both are Might 3, against 6 with the grant on the printed Tank. But the printed Tank then dies at 3 instead of 6.
• ON ATTACK, ALL THREE LEAVE BASE TOGETHER - ADDED 2026-10-14 (#349, from the same run play). A Standard Move goes from base to a battlefield or back (144.4.a, 144.4.b), and only a unit with Ganking may go from battlefield to battlefield (144.4.c.1). 144.3: 'Players may perform multiple Units' standard move simultaneously. This is treated as one game action performed on multiple Units.' So unless the third body has Ganking, the Poro and the third body must start the turn in base beside Yuumi. They cannot be holding another battlefield the turn before, and a unit that moves in after the combat opens arrives too late for her trigger. On defence the three only have to be standing together where the attack lands.
• ONE ENERGY AT REACTION SPEED ANSWERS THE BODY THIS ENGINE STANDS ON (Yuumi, Magical Cat (M1 x3)). OGN-133 Flurry of Blades is Body, 1 Energy: "[Reaction] (Play any time, even before spells and abilities resolve.) Deal 1 to all units at battlefields." 143.2.a kills a unit whose marked damage equals or exceeds its Might and 142.4.b defines Lethal Damage as "a non-zero amount greater than or equal to that Unit's Might", so one damage is lethal to every body of Might 1 or less. RUNNING MORE COPIES IS NOT A DEFENCE: 370.1.a.2 makes events simultaneous when they "are all the result of the same Game Action", so the sweep kills every copy at once. And because it carries [Reaction], 813.1.c.1 lets it be played "during Closed States on any player's turn" - it never has to be cast a turn early the way the base-reaching removals do, and it can land in response to the very trigger this engine exists to fire. WHAT PROTECTS IT: this entry's cards are calm, so the second domain is still free and CHOOSING IT DECIDES WHICH PROTECTION YOU GET - 103.1.b allows exactly one partner, so these are alternatives and not a list you can run together. only if the second domain is FURY: VEN-018 Rage Amplifier (gear, 'Your units have +1 Might' - the only UNCONDITIONAL board-wide one, +2 while Empowered) | only if the second domain is ORDER: OGN-243 Darius, Executioner ('Other friendly units have +1 Might HERE' - his battlefield only, and never himself); OGS-013 Garen, Commander (same clause as Darius, same limits) | only if the second domain is MIND: UNL-077 Soul Shepherd ('Your TOKEN units have +1 Might' - tokens only, nothing for a printed body); SFD-089 Rumble, Scrapper ('Your MECHS have +1 Might' - Mech tag only) | colourless, so legal whatever the second domain is: OGN-294 Trifarian War Camp (colourless battlefield, 'Units here have +1 Might') - but 485.5 makes a battlefield you bring a 1-in-3, and 103.4.c forbids two of the same name. A single-target pump is no use against a sweep that hits every body at once, which is why only permanent, board-wide sources are listed. CAST IN RESPONSE TO YUUMI'S TRIGGER, IT TAKES THE CARD AND PROBABLY THE GRANT - ADDED 2026-10-14 (#349, from the same run play). The card is certain: the Poro has been dealt 1 this turn, which switches its draw off whatever the grant then does. The grant rests on a reading. The 1 kills Yuumi in the Cleanup after Flurry leaves the Chain (143.2.a, 319.5), before her trigger resolves. Her 'here' is read when the instruction executes (359.3.f.2, 'Information referenced in an instruction in this way will be checked on execution of the instruction.'), and 359.3.e.12 gives 'A unit that is no longer on the board has no location'. So the grant mistargets. Walked, the attack that should have won a card and a battlefield lost all three bodies and left the battlefield empty. The rulebook's own example under 359.3.f.2 is a move to base, not a death, which is why this half is a reading; if the grant resolved anyway, the Poro still draws nothing. OGN-045 Defy, a Calm [Reaction], counters Flurry. UNL-106 Repulse does not, because it needs a spell that chooses your unit, and Flurry chooses nothing (355.10.d).

Steps

1. Have Yuumi, Magical Cat (3 Energy + 1 Power), Affectionate Poro (3 Energy) and one other body together: at the same battlefield to defend, or all three in base to attack, moving in as one Standard Move (144.3; CORRECTED 2026-10-14, #349).
2. When a combat starts - either side - Yuumi's trigger gives the OTHER body +3 Might and [Tank] for the turn.
3. 815.1.c.2 makes every other unit you control there an invalid assignment until that body has lethal damage, so the Poro is untouchable while it lives.
4. 465.2.c.3 forces the attacker to put lethal on it in full first; an attack summing less than its new Might kills nobody.
5. When the combat ends, the Poro has taken no damage and draws 1.
6. Do not let anything ping the Poro earlier in the turn: its condition reads 'this turn', not 'this combat'.

Per iteration

one card per combat the Poro survives untouched, bought by nominating a different body to absorb everything

How it ends

engine only - one card per Poro per combat, three of each by 103.2.b, and it stops paying against any source of incidental damage; nothing here scores

Sources

Published elsewhere

• Riftbound Core Rules, Last Updated 2026-07-16 (data/Riftbound-Core-Rules-2026-07-16.txt) 2026-07-16
• Card text verbatim from data/corpus_flat.txt (built from Riot's gallery content API) 2026-09-07

Walked here, in this project

• Hand walk 2026-09-07 (docs/phase0/walks/2026-09-07-uncatalogued-calm-mind-order.md, batch 7) 2026-09-07 record

Walked against Core Rules 2026-07-16

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