The First Microorganism

(The First Microorganism isn't a spell, it's affected by summoning sickness, and it has "{t}: Add {c}.")
Ward-{p/c} Flying Vigilance
{p/c}{t}: Target player takes X Damage where X is
the number of Microbes they control.
{p/c}{t}: Target player gains X life where X is the
number of Microbes they control.
Players may activate the abilities of microbes they control using any color of mana.