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.
Near Mint - $10.60
Near Mint Non-English - $10.60
Lightly Played - $9.60
Lightly Played Non-English - $9.60
Played - $7.50
Played Non-English - $7.50
Heavily Played - $6.40
Heavily Played Non-English - $6.40
Damaged - $5.30
Damaged Non-English - $5.30
Foil Prices
Near Mint Foil - $10.50
Near Mint Foil Non-English - $10.50
Lightly Played Foil - $9.40
Lightly Played Foil Non-English - $9.40
Played Foil - $7.30
Played Foil Non-English - $7.30
Heavily Played Foil - $6.30
Heavily Played Foil Non-English - $6.30
Damaged Foil - $5.20
Damaged Foil Non-English - $5.20