Teferi's Isle [Mirage] XY149 the Su-Chi were inherently unstable

the Su-Chi were inherently unstable but provided useful knowledge for Tocasia's students

Set: Shadows over Innistrad Prerelease Promos Type: Legendary Creature — Frog Horror Rarity: Mythic Cost: {3}{B}{G} Deathtouch

Set: Sun & Moon: Lost Thunder Type: Colorless Rarity: Secret Rare Retreat cost: Colorless

Whenever you discard a card

Set: Alternate Art Promos Type: Darkness Rarity: Promo

Teferi's Isle [Mirage] XY149 the Su-Chi were inherently unstableSet: 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.