The Sanderson Sisters

Flying, Deathtouch, Lifelink
{p/b}{p/b}{t}: Create a 1/1 black zombie with haste
When the Sanderson Sisters deal combat damage
to a player, target creature that player controls
becomes a 1/1 cat, loses all abilities and card
types, and gains indestructible for as long as
The Sanderson Sisters remains on the battlefield.