Teferi, Master of Time (Showcase) (292) [Core Set 2021] Legendary Enchantment Set: Magic 2015 Type: Creature

Set: Magic 2015 Type: Creature — Avatar Rarity: Mythic Cost: {4}{B}{B} Deathtouch

You lose the game when that creature leaves the battlefield

Set: Collectors' Edition Type: Instant Rarity: Rare Cost: {B} Target spell or permanent becomes black

but I can think of a better use for that

Teferi, Master of Time (Showcase) (292) [Core Set 2021] Legendary Enchantment Set: Magic 2015 Type: CreatureSet: Core Set 2021 Type: Legendary Planeswalker Teferi Rarity: Mythic Cost: {2}{U}{U} You may activate loyalty abilities of Teferi, Master of Time on any player's turn any time you could cast an instant. +1: Draw a card, then discard a card. 3: Target creature you don't control phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.) 10: Take two extra turns after this one.