Ingenuity Engine

Cascade on a colorless artifact is a strange animal. The mechanic was built for spells with a color identity to lean on, and its payoff is a free cast of whatever nonland card sits under this one's seven mana value: the higher that flip lands, the more you get for nothing. Because cascade almost always hits (it keeps exiling until it finds a legal card), the risk is usually not whiffing but flipping something cheap; a deck stuffed with expensive artifacts turns the same trigger into a genuinely large free spell. That payload also arrives before this ever touches the battlefield, because cascade resolves off the cast, not the resolution: the artifact and its cascade spell are two separate objects on the stack, and the free cast is banked whether or not the engine survives. The activated ability is the more deliberate half. Tapping and sacrificing an artifact to bounce another artifact reads like a nuisance until you notice it is a repeatable recursion valve: any artifact worth replaying, plus a stream of fodder to feed the sacrifice cost, and the loop runs as long as the pieces hold up. Because both the thing sacrificed and the thing returned are simply "an artifact" (no creature clause, no cost ceiling), you get a chassis rather than a single combo line. The two halves pull toward the same want, expensive artifacts, but reward them differently: cascade wants one big flip, the engine wants a bounce target worth casting again.