Void Golem Arcanist

{0}: If Void Golem Arcanist is a creature, it is no
longer a creature. (It retains it's other types.)
{1}, Sacrifice a permanent: Gain 1 life. Scry 1.
{2}, Discard a card: If Void Golem Arcanist is
not a creature, it becomes a creature in addition
to its other types. If it is a creature, you instead
may have it deal X damage to target creature or
planeswalker or twice X damage to target player.
You gain life equal to the damage dealt this way.
Void Golem can be your commander.
Vigilance,