Gyirahs, The Wild King

Vigilance
When Gyirahs, The Wild King enters the
battlefield, if you cast it, search your library for up
to four Monster cards not named
Gyirahs, The Wild King, that each have different
names, reveal them, and put them into your hand,
then shuffle.

An ancient king, banished to a far away island.
He has returned and brought his horde with him.