Kalitas, Traitor of Ghet [Oath of the Gatewatch] Magic 2014 its controller adds an additional

its controller adds an additional one mana of that color

{T}: Add {C}{C}

and if you do

Set: Unlimited Edition Type: Creature — Gargoyle Rare Cost: {2}{R} Flying {R}: Granite Gargoyle gets +0/+1 until end of turn

centaur druid

Kalitas, Traitor of Ghet [Oath of the Gatewatch] Magic 2014 its controller adds an additionalSet: Oath of the Gatewatch Type: Legendary Creature Vampire Warrior Mythic Cost: {2}{B}{B} Lifelink If a nontoken creature an opponent controls would die, instead exile that card and create a 2 2 black Zombie creature token. {2}{B}, Sacrifice another Vampire or Zombie: Put two +1 +1 counters on Kalitas, Traitor of Ghet.