Chain of Vapor [Onslaught] Dragon Knight Set: EX: Holon Phantoms Type:

Set: EX: Holon Phantoms Type: Fire Rarity: Rare Retreat cost: Colorless

Set: Beta Edition Type: Artifact Rarity: Uncommon Cost: {1} Whenever a player casts a white spell

Set: Ugin's Fate Type: Artifact Rarity: Rare Cost: {1} Whenever another permanent enters the battlefield under your control

Set: Battle for Zendikar Prerelease Promos Type: Legendary Creature — Eldrazi Rarity: Mythic Cost: {10} When you cast this spell

then put all cards exiled with Knowledge Vault into their owner's hand

Chain of Vapor [Onslaught] Dragon Knight Set: EX: Holon Phantoms Type:Set: Onslaught Type: Instant Rarity: Uncommon Cost: {U} Return target nonland permanent to its owner's hand. Then that permanent's controller may sacrifice a land. If the player does, they may copy this spell and may choose a new target for that copy.