Teferi's Isle [Mirage] Human Wizard Set: Alternate Art Promos Type:

Set: Alternate Art Promos Type: Psychic Rarity: Promo Retreat cost: Colorless

Sacrifice a creature: Search your library for a creature card with mana value equal to 1 plus the sacrificed creature's mana value

Probably fine

Set: Ixalan Prerelease Promos Type: Creature — Vampire Knight Rarity: Rare Cost: {2}{B}{B} Whenever a Vampire you control attacks

Teferi's Isle [Mirage] Human Wizard Set: Alternate Art Promos Type:Set: Mirage Type: Legendary Land Rarity: Rare Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.) Teferi's Isle enters the battlefield tapped. {T}: Add {U}{U}. The three wizards knew only that this isle held a great mysteryand that patience alone would solve it.