Scrap Compactor

A one-drop artifact that produces no immediate effect and asks you to spend mana later to convert it into removal, priced with a spread between its two modes that is genuinely enormous. Three mana plus the sacrifice buys three damage, roughly a Shock stapled to a colorless permanent you had to invest in first; six mana plus the sacrifice buys unconditional destruction of a creature or Vehicle, a rate nobody would deliberately route mana toward. That gap is deliberate. The card sits in play doing nothing until you decide which half you can afford, and the cheap half is the one it is built to fire: interaction any deck can run because it demands no colored pips, only that you eventually part with the artifact. The destruction mode works less as a plan than as a ceiling, a way to say the answer scales up if the game runs long enough that six mana is trivial and a resilient threat has to leave. Colorless removal that slots into any manabase has always been a quiet structural gift, and paying for it with a sacrifice keeps it from being free value: this is a single bullet, spent and gone, not a repeatable engine. Extending the second mode past creatures to cover Vehicles marks the mechanized-threat era it comes from, folding a mode built for animated hardware into a card that would already earn its slot on the damage half alone.