Arahbo, Roar of the World

Eminence — At the beginning of combat on
your turn, if Arahbo is in the command zone
or on the battlefield, another target Cat you control gets +3/+3 until end of turn.

Whenever another Cat you control attacks,
you may pay {1}{g}{w}. If you do, it gains trample and gets +X/+X until end of turn, where X is its power.