The Red-Eyed Fiend

Cloaked (This creature has hexproof and is
unblockable. Remove this ability if this creature
deals combat damage to a player.)
When this creature deals combat damage to a
player, you may sacrifice another tapped creature
you control. If you do, Cloaked isn't removed
and you may draw a card.
1{u/b}{u/b}: Target creature with power 2 or less
gains Cloaked until end of turn.