Avacyn, Stalker of Mice

Double-Strike, Menace
As long as you have two or more Cat Creatures
under your control, Avacyn, Stalker of Mice
gets +2/+2.
{3}{r/w}, {t}: Creatures under your control get indestructible until end of turn.
Meow! Throw my toy or I get mad! MEOW!