Look at the size of it. Mega cards were always about scale and Steelix had more to work with than most, so the Full Art M Steelix EX from Steam Siege — 109/114 — gets to sprawl across the whole frame.
Ace has this one at 9 Mint. Older full arts have usually been through a binder or two by now, and it tends to show on the edges. This one has escaped that. Clean face, strong presentation, one small thing keeping it a step below the top grade.
Steam Siege is not a set many people rush to defend. The mega full arts are the argument in its favour. Cert 1273640 is printed on the label for checking with Ace.