Meteoric Mace

Cascade on an Equipment is the wrinkle worth stopping on. The keyword triggers when you cast the spell, so the free spell resolves before the mace ever reaches the battlefield: pay six mana, dig for a random nonland spell under that cost, cast it, and only then are you left holding an artifact that still wants its equip cost before it modifies anything. That ordering puts the payoff on the wrong half of the card. Cascade usually front-loads value onto something that hits the board immediately (a creature, a burn spell), rewarding tempo. Here it bolts the lottery onto an inert object. The +4/+0 and trample make a serviceable finisher once attached, but you are spending six mana chiefly to fire the cast trigger, not to unbox the gear. What you actually buy is a single cascade event with an Equipment stapled to the back end: pull the trigger, take whatever the top of the library gives you, and treat the mace as the residue rather than the goal. That inversion (a mechanic built to generate momentum grafted onto a card structurally incapable of generating any) is what makes it read stranger than the stat line implies. It is a one-shot dice roll priced like a payoff, and the payoff is the roll.