
EnchantEnchantThis Aura can only be attached to the stated kind of object or player. creature card in a graveyard
When this Aura enters, if it's on the battlefield, it loses "enchantenchantThis Aura can only be attached to the stated kind of object or player. creature card in a graveyard" and gains "enchantenchantThis Aura can only be attached to the stated kind of object or player. creature put onto the battlefield with this Aura." Return enchanted creature card to the battlefield under your control and attach this Aura to it. When this Aura leaves the battlefield, that creature's controller sacrifices it.
Enchanted creature gets -1/-0.
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Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.