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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 Magic Online Promos
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Arni Brokenbrow (PRM-88308) is a legendary Human Berserker creature from the Magic Online Promos set. It has haste and a Boast ability that for {1} can set its base power to 1 plus the greatest power among other creatures you control until end of turn. The card typically serves as an aggressive one-drop-two-drop attacker that can temporarily scale its power to match your largest creature after it has attacked.
Catalog pricing data as of 18 Apr 2026, 23:54
