Emptiness [Lorwyn Eclipsed] Link/Effect Monster or a 1/1 White Bird

or a 1/1 White Bird token with flying

or whatever extensive research you've done and can show that they're from that plane

Set: Secret Lair Drop Series Type: Instant Rarity: Rare Cost: {1}{B/P}{B/P} ({B/P} can be paid with either {B} or 2 life

{T}: Add {W}{U}

Set: Rage of the Abyss Card type: Effect Monster Rarity: Quarter Century Secret Rare Attack: 1600 Defense: 1600 (This card is always treated as a "Mermail" card

Emptiness [Lorwyn Eclipsed] Link/Effect Monster or a 1/1 White BirdSet: Lorwyn Eclipsed Type: Creature Elemental Incarnation Rarity: Mythic Cost: {4}{W B}{W B} When this creature enters, if {W}{W} was spent to cast it, return target creature card with mana value 3 or less from your graveyard to the battlefield. When this creature enters, if {B}{B} was spent to cast it, put three 1 1 counters on up to one target creature. Evoke {W B}{W B}