At the beginning of your upkeep, Gilt-Leaf Cairns deals 1 damage to target creature you control. : Add  to your mana pool. Activate this ability only if you control a Forest. : Add  to your mana pool. Activate this ability only if you control a Swamp. : Gilt-Leaf Cairns becomes a 2/2 black and green Stag creature with trample until end of turn. It's still a land.