
FlyingFlyingCan only be blocked by creatures with flying or reach.
When this creature enters, return an enchantment card from your graveyard to your hand or unlock a locked door of a Room you control.
EerieEerieAbility word: triggers whenever an enchantment enters under your control and whenever you fully unlock a Room. — Whenever an enchantment you control enters and whenever you fully unlock a Room, create a 3/1 white Spirit creature token with flyingflyingCan only be blocked by creatures with flying or reach..
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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.