Oracle's Vault [Amonkhet Prerelease Promos] Bird Scout When Keening Banshee enters the

When Keening Banshee enters the battlefield

attacking creatures get +1/+1 until end of turn

Set: Mirrodin Type: Creature — Slith Rarity: Uncommon Cost: {1}{W}{W} Flying

defending player discards a card

vedalken observers thought blinkmoths naturally avoided certain places

Oracle's Vault [Amonkhet Prerelease Promos] Bird Scout When Keening Banshee enters theSet: Amonkhet Prerelease Promos Type: Artifact Rarity: Rare Cost: {4} {2}, {T}: Exile the top card of your library. Until end of turn, you may play that card. Put a brick counter on Oracle's Vault. {T}: Exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Activate only if there are three or more brick counters on Oracle's Vault.