Moxite Refinery

Counters are usually printed as a currency with a fixed exchange rate: a proliferate spreads them, a removal effect strips them, an activated ability spends them one at a time. This device instead builds a pump under it: it converts counters wholesale, pulling X of any counter type off one permanent and redepositing X of the chosen type onto a target. The flexibility is total on the input side (any artifact or creature you control, any counter it holds) and modal on the output, so the machine can either fuel an artifact that wants charge counters or grow a creature that wants +1/+1s. That makes it a translation layer between two counter economies that normally do not talk to each other: a deck stacking counters for one payoff can suddenly cash them out toward another. The sorcery-speed restriction is what keeps the loop from spiraling into an instant-speed combat trick or a stack-based feedback engine; every conversion has to happen on your own main phase, with the tap cost gating the tempo further. The design's whole interest lives in what you point it at: a counter-agnostic redistributor is only as strong as the two counter systems it bridges, and the ceiling is set entirely by the surrounding board rather than by anything on the artifact itself.