This spell can't be countered. You may have Altered Ego enter the battlefield as a copy of any creature on the battlefield, except it enters with X additional +1/+1 counters on it.
NM-Mint - $1.10
Lightly Played - $1.00
Moderately Played - $0.90
Heavily Played - $0.80
Damaged - $0.60
NM-Mint Non English - $1.10
Lightly Played Non English - $1.00
Moderately Played Non English - $0.90
Heavily Played Non English - $0.80
Damaged Non English - $0.60
Foil Prices
NM-Mint Foil - $3.00
Lightly Played Foil - $2.70
Moderately Played Foil - $2.40
Heavily Played Foil - $2.10
Damaged Foil - $1.50
NM-Mint Foil Non English - $3.00
Lightly Played Foil Non English - $2.70
Moderately Played Foil Non English - $2.40
Heavily Played Foil Non English - $2.10
Damaged Foil Non English - $1.50