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Haste Boast — {1}: You may change Arni's base power to 1 plus the greatest power among other creatures you control until end of turn. (Activate only if this creature attacked this turn and only once each turn.)
Abilities, attacks, weakness & resistance
Other cards from Kaldheim Promos
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Arni Brokenbrow (PKHM-120p foil) is a legendary creature — Human Berserker from the Kaldheim Promos set. It has haste and a Boast ability that can, once each turn after it attacks, set Arni’s base power to 1 plus the greatest power among other creatures you control until end of turn. Its flexibility lets it either attack as a 3-power haste attacker or become larger based on your board to trade or push extra damage.
Catalog pricing data as of 5 May 2026, 00:31
