Vydar, God of Primordium

Vydar can't be exiled from the battlefield or dealt damage.
At the beginning of combat, phase out Vydar unless you control another blue artifact, black creature, and green enchantment.

{x}, Exile a black creature you control: Mill X cards. You may put a blue artifact and a green enchantment with total mana value less than the exiled creature's mana value from gr