Doctor

{4}: Flip 2 coins. You get the bonus for Doctor for 2 turns.
H, H: Fire Potion: +3/+0.
H, T: Electricity Potion: +2/+1
T, H: Ice Potion: +1/+2
T, T: Healing Potion: +0/+3, gain 1 life.
"I will write you a prescription for kicking enemy butt!"