Trollest Simulacrum

Indestructible
When Trollest Simulacrum enters the battlefield,
its owner may search their library for a Goblin
or Troll with converted mana cost 4 or less and
put it on to the battlefield.
If Trollest Simulacrum is put into a graveyard
from the battlefield, its owner may return
another target Goblin or Troll from a graveyard
to the battlefield.