Clestina, Enchantress

As an additional cost to cast Clestina, you may exile four noncreature, nonland cards from your graveyard. If you do, Enchantments you control have Hexproof until Clestina leaves the battlefield.
Whenever an enchanted creature you control would be destroyed, you may return attached enchantments to their owner's hand. If you do not, exile those enchantments instead, and regenerate that creature.