A-Thran Spider

Ramp usually keeps its acceleration to itself, so the tell here is the shared gift: this hands a Powerstone to a target opponent as well. The trade only reads as favorable once you notice how differently the two tokens can be spent. Powerstones cannot pay for nonartifact spells, so the mana you hand across the table is only fully useful to a deck already leaning on artifacts and activated abilities. The more your own list is built to turn colorless mana into pressure, the more that "symmetrical" ramp skews back toward you. The body pays for the generosity honestly. A 2/4 with reach is a genuine wall: it blocks fliers, holds a ground stall, and buys the time the ramp wants while the mana quietly banks. The seven-mana card-selection sink is where those tapped Powerstones eventually go in the late game: dig four deep, keep the best, bury the rest at the bottom in random order, and repeat as the artifact mana snowballs past what a normal curve allows. This is defensive ramp wearing the costume of a fair blocker, priced so the acceleration you share is acceleration you are simply better positioned to abuse.