Arahbo, Roar of the World

Eminence — At the beginning of combat on your
turn, if Arahbo, Roar of the World 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.