Two mana for an Equipment that equips for one and starts at +1/+0 (it counts itself) is a fine rate in a format where the average common 2-drop is a 2/2. The math that matters is what TMT's artifact density does to the rider. Bespoke Bō, Novel Nunchaku, and the various Pizza Food tokens push the count up fast: a turn-four board with two other artifacts turns any creature into a 5/2 for a single red mana, and because the format's removal answers creatures rather than Equipment, the threat reloads onto the next body for one more red.
RW Equipment is the cleanest home. Bespoke Bō stacks on the same creature, and the archetype rewards a wide team rather than one tall threat, which is exactly what the sideways +1/+0 scaling wants. Mardu Artifacts runs it for the same reason with a deeper artifact count. BG Food treats it as a secondary aggressive line when the deck skews toward creatures and Pizza tokens over sacrifice value. UR Sneak wants it least: its evasive single-threat plan doesn't multiply the rider, and the five-mana copy mode competes with the mana the deck holds for tricks.
P1P4 to P1P6 once you've signaled red and artifacts, earlier if you already own a payoff like the Bō. Maindeck in the artifact shells, cuttable in a base-red deck that is really just burn and 2/2s. The real punisher is Stomped by the Foot on the equipped creature: a clean one-for-one that strips your damage and your tempo, though the Equipment survives to re-equip, and the copy mode is your long-game payoff regardless.
