Aberration Metamorph

Split Second & Limbo (You may exile this face
down from your hand for {2} & draw a card.
Only return this from exile when you lose life
& pay {1}. Reveal it before returning it to hand)
You may have this enter the battlefield as a copy
of any Aberration creature on the battlefield with
a mana cost of X or less, except it enters with a shield counter if you control the creature.