Faultgrinder

What evoke does for this one is sever the body from the effect: the Stone Rain stapled to a 4/4 trampler is the full-price version, and the evoke cost lets you fire the destroy trigger while sacrificing the elemental on arrival. That split matters because the two halves want different things. The beater wants to stick on a board where seven mana buys a real threat; the land-kill impulse wants to come down early, before an opponent's mana is established, when paying full freight for a creature you do not need is the wrong trade. Evoke resolves the tension by pricing the trigger as a spell in its own right, with the creature as collateral. The land dies either way: this never reads as a burn spell with upside, because the destruction is mandatory and the only choice you make is whether to keep the elemental afterward. Where most members of the evoke cycle hang a juicy enters effect on a body you might actually want, the destroy trigger here is so single-minded that the discount feels less like a value play and more like buying land destruction off the shelf. That makes Faultgrinder the cleanest illustration of evoke as a delivery mechanism for an effect rather than a way to bank a creature's stats: the keyword exists here to let you buy the Stone Rain without buying the trampler you cannot yet afford.