Barrenton Medic

Creature - Kithkin Cleric 0/4, 4W (5)
{T}: Prevent the next 1 damage that would be dealt to target creature or player this turn.
Put a -1/-1 counter on Barrenton Medic: Untap Barrenton Medic.
His dreams are filled with noxious powders and clinking vials.
Illus. Trevor Hairsine

Gatherer Card Rulings [Nov 2009]

• 5/1/2008: You put the -1/-1 counter on Barrenton Medic as a cost. That means it happens when you activate the ability, not when it resolves. If paying the cost causes the creature to have 0 toughness, it's put into the graveyard before you can untap it and before you can even pay the cost again.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/10)	Shadowmoor (Common)