Leo, The Lion

Double strike, prowl {r}{g}{w}
(You may cast this for its prowl cost if you dealt
combat damage to a player this turn with a Cat or
Warrior.)
{x}{r}{g}{w}, {t}: Creatures you control gain
intimidate until end of turn. If Leo, the Lion
was cast for its prowl cost, any creature that
blocks a creature you control loses -X/-X until
end of turn.