When Assaultron Dominator enters the battlefield, you get {E}{E} (two energy counters). Whenever an artifact creature you control attacks, you may pay {E}. If you do, put your choice of a +1/+1, first strike, or trample counter on that creature.
NM-Mint Foil - $1.30
Lightly Played Foil - $1.10
Moderately Played Foil - $1.00
Heavily Played Foil - $0.90
Damaged Foil - $0.60
NM-Mint Foil Non English - $1.30
Lightly Played Foil Non English - $1.10
Moderately Played Foil Non English - $1.00
Heavily Played Foil Non English - $0.90
Damaged Foil Non English - $0.60