Eye of Ugin [Worldwake]Set: Worldwake Type: Legendary Land Rarity: Mythic Colorless Eldrazi spells you cast cost {2} less to cast. {7}, {T}: Search your library for a colorless creature card, reveal it, put it into your hand, then shuffle. An eye closes. A race awakens.

Set: XY: Generations Type: Lightning Rarity: Common Retreat cost: Colorless

Set: Sun & Moon: Crimson Invasion Type: Lightning Rarity: Secret Rare Retreat cost: Colorless

waiting for a victory only it can see

you lose life equal to your life total

Set: Nintendo: Black Star Promos Type: Psychic Rarity: Promo Retreat cost: Colorless

When Necromancy leaves the battlefield

Psychic Rarity: Ultra Rare Retreat cost: Colorless

Set: Sun & Moon: Guardians Rising Type: Water Rarity: Common Retreat cost: 1

That player may pay 10 life

You may cast a spell with mana value 5 or less from your hand without paying its mana cost

For reasons unknown to Crovax

Set: Neo Revelation 1st Edition Type: Metal Rarity: Holo Rare Retreat cost: Colorless