Welding Sparks

The floor here is a guaranteed three damage at instant speed, because you always control at least zero artifacts, so X never drops below 3 and the spell never reads as a dead card the way payoffs gated behind a critical mass of permanents often do. What it asks for in return is that you have built around it. Two artifacts on board and it is dealing five, killing creatures that comparable burn at this cost cannot touch; in a board state thick with equipment, vehicles, and mana rocks it scales past the point where toughness matters at all. The tension is that those three mana buy you a serviceable but unremarkable burn spell on an empty board and a genuine removal engine in a deck assembled to feed it. That makes it a reward card rather than a staple: in a list with no artifact density it is single-target burn paying a premium for a clause it cannot use, and in a list built to exploit it the same cost answers threats that should be out of range. This is the artifact-count payoff done as combat math: instant-speed removal that prices the answer up front and refunds the difference only to the player who showed up with the artifacts to make X climb. The clause that would be a liability in any other deck becomes the reason to run it in this one.