UR Artifacts is the obvious home, and the attack restriction is doing real work there as a self-policing rate clause rather than a meaningful drawback. The deck wants this third or fourth in the colors once it has committed, behind a removal spell and a real payoff but ahead of the format's generic two-drops. The hybrid pip is the reason it stays pickable rather than a trap: a mono-blue or mono-red artifact build runs it without splashing, so a heavy-blue deck with an Equipment subtheme can take it on rate even before the second color is locked.
A 2/3 for two lines up well against the format's common ground stat lines, blocking the 
2/2s cleanly and trading with the 
3/2s without folding to the one-damage edges that tend to punish small artifact boards. That toughness is what lets it hold the ground while the deck assembles its payoffs.
What the format changes about the baseline is the artifact density question. TMT is not an artifact-matters set in the affinity sense: the subtheme exists, Equipment like Bespoke Bō and Novel Nunchaku turns the attack clause on, and the medium speed gives you the turns to find a second artifact. But in a straight UR Tempo build without that scaffolding, the clause bites more than it reads: turn-two play, no follow-up artifact, and the 2/3 sits behind your Sneak threats doing nothing on offense.
Maindeck in UR Artifacts, flex in a UR shell that has drifted toward spells, and a Stomped by the Foot magnet whenever it does attack. The honest read sits closer to Manual's five than Draftsim's three: a workhorse body, not an exciting one.
