Rengar, Roar of the World

Eminence — At the begining of combat on
your turn, if Rengar, Roar of the World is
in the command zone or on the battlefield
another target cat you control gets +3/+3
until the end of the turn.
Whenever another cat you control attacks,
you may pay {1}{g}{w}. If you do, it gains trample
and gets +X/+X until the end of the turn, where
X is its power.
"Tonight, we hunt!"