As Primal Clay enters the battlefield, it becomes your choice of a 3/3 artifact creature, a 2/2 artifact creature with flying, or a 1/6 Wall artifact creature with defender in addition to its other types. (A creature with defender can't attack.)
NM-Mint - $4.10
Lightly Played - $3.70
Moderately Played - $3.30
Heavily Played - $2.90
Damaged - $2.10
NM-Mint Non English - $4.10
Lightly Played Non English - $3.70
Moderately Played Non English - $3.30
Heavily Played Non English - $2.90
Damaged Non English - $2.10