Biolume Bolter

Whenever Biolume Bolter deals combat damage to a player, draw a card.
{t}: Submerge — Biolume Bolter can't be
blocked this turn. (This creature phases out.
When it phases in, Biolume Bolter can't be
blocked this turn. Submerge only as a sorcery.)
It sees all, and all see it.