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 Foil - $5.40
Lightly Played Foil - $4.80
Moderately Played Foil - $4.30
Heavily Played Foil - $3.80
Damaged Foil - $2.70
NM-Mint Foil Non English - $5.40
Lightly Played Foil Non English - $4.80
Moderately Played Foil Non English - $4.30
Heavily Played Foil Non English - $3.80
Damaged Foil Non English - $2.70