+Mirror, +Shield (2)
Equipped creature gets +0/+2 and has hexproof and "Whenever a creature with deathtouch blocks or becomes blocked by this creature, destroy that creature."
Equip (: Attach to target creature you control. Equip only as a sorcery.)
Vigilance
Whenever a creature you control becomes the target of a backup ability, copy that ability. You may choose new targets for the copy. This ability triggers only once each turn.
Gatherer works better in the Companion app!