Potion Bag

Potion bag can only be cast &/or have it's
effects paid for with {w}, {g} &/or {b} mana.
Potion bag cannot target artifact creatures.
{2}: prevent the next 1 damage dealt to any
creature you control.
{3}: remove a poison counter from yourself,
or a -1/-1 counter from any creature you
control.
{3}: Gain 1 life.
"Oh, you got poisoned again? One second..."