Magic The Gathering Cards of types 'Ooze' and 'Wizard'

{T}, Sacrifice another creature: Search your library for a creature card with mana value equal to 1 plus the sacrificed creature's mana value, put that card onto the battlefield, then shuffle. Activate only as a sorcery.

At the beginning of combat on your turn, choose one - - Cloak a card from your hand. (Put it onto the battlefield face down as a 2/2 creature with ward {2}. Turn it face up any time for its mana cost if it's a creature card.) - Put a +1/+1 counter on each colorless creature you control.