Cultural Exchange [Odyssey]Set: Odyssey Type: Sorcery Rarity: Rare Cost: {4}{U}{U} Choose any number of creatures target player controls. Choose the same number of creatures another target player controls. Those players exchange control of those creatures. (This effect lasts indefinitely.)

untap Helldozer

Set: Neo Revelation 1st Edition Type: Psychic Rarity: Common

Set: Aether Revolt Type: Artifact Creature — Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1/+1 counters on it

When Nessian Wilds Ravager enters the battlefield

Ingest (Whenever this creature deals combat damage to a player

To the end

Set: Eternal Masters Type: Enchantment — Aura Rarity: Uncommon Cost: {G} Enchant creature

Set: Black & White: Plasma Blast Type: Psychic Rarity: Rare Retreat cost: Colorless

Set: World Championships 2015 Type: Lightning Rarity: Common

Set: Commander 2011 Type: Legendary Creature — Giant Warrior Rarity: Mythic Cost: {1}{U}{R}{W} At the beginning of combat on your turn

but at the cost of a continuous supply of energy

as the plant grew