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Crystalline Nautilus | Enchantment Creature | Nautilus | Bestow {3}{U}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
When Crystalline Nautilus becomes the target of a spell or ability, sacrifice it.
Enchanted creature gets +4/+4 and has "When this creature becomes the target of a spell or ability, sacrifice it." | Brad Rigney
Daring Thief | Creature | Human Rogue | Inspired — Whenever Daring Thief becomes untapped, you may exchange control of target nonland permanent you control and target permanent an opponent controls that shares a card type with it. | Johann Bodin
Riptide Chimera | Enchantment Creature | Chimera | Flying
At the beginning of your upkeep, return an enchantment you control to its owner's hand. | Ryan Barger
War-Wing Siren | Creature | Siren Soldier | Flying
Heroic — Whenever you cast a spell that targets War-Wing Siren, put a +1/+1 counter on War-Wing Siren. | Magali Villeneuve
