Grisdalgoratrion

Trample, deathtouch
Grisdalgoratrion can't be destroyed or exiled. If
lethal damage would be dealt to this creature,
prevent that damage and sacrifice another target creature.
At the beginning of each upkeep, for each
creature named Grisdalgoratrion you control,
create a copy of that creature, except it's not legendary and it doesn't have this ability.