Teferi, Master of Time — Core Set 2021 #291

You may activate loyalty abilities of Teferi 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.