Painsmith

The trigger condition does the heavy lifting: every artifact spell you cast, regardless of size or purpose, hands a creature of your choice +2/+0 and deathtouch until end of turn. In a deck built on cheap artifacts (and especially the era's free or near-free spells), that turns an otherwise unthreatening attacker into a creature nobody wants to block. A deathtouch body with a power bump trades up against any blocker: send it in, and the defender either lets it through or loses a creature to the swing. The fragility of the 2/1 is the counterweight that pays for the engine: it dies to almost everything before it can chain triggers across a turn, so the payoff demands that you stick the artificer and then cast artifacts on the same turn you intend to attack. The most pointed piece of the design is where the buff lands: not on the artificer itself, but on a target of your choosing, so the source can sit back as a value engine while a sturdier threat carries the deathtouch into combat. That separation between enabler and beneficiary is what asks you to build around it rather than slot it in: it is a combat-trick generator wearing the costume of a throwaway two-drop, and the gap between those two readings is the entire reason it demands a deck rather than a slot.