"Magic 2014 Core Set", +~X (4)
Counter target spell with mana value X. (For example, if that spell's mana cost is , X is 5.)
Vastwood Hydra enters with X +1/+1 counters on it.
When Vastwood Hydra dies, you may distribute a number of +1/+1 counters equal to the number of +1/+1 counters on Vastwood Hydra among any number of creatures you control.
Volcanic Geyser deals X damage to any target.
Windstorm deals X damage to each creature with flying.
Gatherer works better in the Companion app!