Trilobite

{2}{t}: Attach to target non-artifact creature an opponent controls. Attach only as a sorcery. As long as Trilobite is attached to a creature, it loses all other abilities and cannot attack or block. At the beginning of your upkeep you may pay {2}, if you do, sacrifice this creature and create a 3/3 Deacon creature token with "Deathtouch, Haste, and Acid Blood 2.