When Sparring Regimen enters the battlefield, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.) Whenever you attack, put a +1/+1 counter on target attacking creature and untap it.
Near Mint - $0.20
Near Mint Non-English - $0.20
Lightly Played - $0.20
Lightly Played Non-English - $0.20
Played - $0.10
Played Non-English - $0.10
Heavily Played - $0.10
Heavily Played Non-English - $0.10
Damaged - $0.10
Damaged Non-English - $0.10
Foil Prices
Near Mint Foil - $0.30
Near Mint Foil Non-English - $0.30
Lightly Played Foil - $0.30
Lightly Played Foil Non-English - $0.30
Played Foil - $0.20
Played Foil Non-English - $0.20
Heavily Played Foil - $0.20
Heavily Played Foil Non-English - $0.20
Damaged Foil - $0.20
Damaged Foil Non-English - $0.20