Chain of Vapor [Commander 2016] Human Mystic When Ancestral Knowledge leaves the

When Ancestral Knowledge leaves the battlefield

This card enters the battlefield unattached and stays on the battlefield if the creature leaves

Those players put the exiled cards onto the battlefield

Dozens of spells known only to the Auriok elders were lost

its controller reveals cards from the top of their library until they reveal a creature card

Chain of Vapor [Commander 2016] Human Mystic When Ancestral Knowledge leaves theSet: Commander 2016 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.