Arni Brokenbrow

Haste
Boast — : You may change Arni Brokenbrow’s base power to 1 plus the greatest power among other creatures you control until end of turn. (Activate this ability only if this creature attacked this turn and only once each turn.)

Arni Brokenbrow

Haste
Boast — : You may change Arni Brokenbrow’s base power to 1 plus the greatest power among other creatures you control until end of turn. (Activate this ability only if this creature attacked this turn and only once each turn.)

Dragonkin Berserker

First strike
Boast abilities you activate cost less to activate for each Dragon you control.
Boast — : Create a 5/5 red Dragon creature token with flying. (Activate this ability only if this creature attacked this turn and only once each turn.)