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.
Near Mint Foil - £6.40
Lightly Played Foil - £5.40
Moderately Played Foil - £4.50
Heavily Played Foil - £3.20
Damaged Foil - £1.90
Near Mint Foil Non English - £6.40
Lightly Played Foil Non English - £5.40
Moderately Played Foil Non English - £4.50
Heavily Played Foil Non English - £3.20
Damaged Foil Non English - £1.90