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.