Ambulas

Self Repair - Whenever "Ambulas" gets destroyed,
it becomes a 0/4 "Self Reparing Ambulas" creature.
Self Repairing Ambulas - Transform "Self
Reparing Ambulas" into "Ambulas" at the
beginning of your upkeep.
All Creatures have:
Hacking - {t}{2} Destroy target "Self Reparing
Ambulas".