Bacteriaphage

You may cast Bacteriophage from exile.
When you cast this spell, target creature gets
-0/-X where X is the number of Microbes you
control, then draw 1 card.
Indeestructible
{p/c}, {t}: Untap target Microbe other than Bacteriaphage.
{p/c}, {t}, Sacrifice a Microbe you control: Gain life
equal to the sacrificed creature’s mana value.
{p/c}, {t}: Exile Bacteriaphage.