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 - $9.70
Near Mint Non-English - $9.70
Lightly Played - $8.70
Lightly Played Non-English - $8.70
Played - $6.80
Played Non-English - $6.80
Heavily Played - $5.80
Heavily Played Non-English - $5.80
Damaged - $4.90
Damaged Non-English - $4.90
Foil Prices
Near Mint Foil - $10.90
Near Mint Foil Non-English - $10.90
Lightly Played Foil - $9.80
Lightly Played Foil Non-English - $9.80
Played Foil - $7.70
Played Foil Non-English - $7.70
Heavily Played Foil - $6.60
Heavily Played Foil Non-English - $6.60
Damaged Foil - $5.50
Damaged Foil Non-English - $5.50