Unruly Krasis

The attack trigger is why this thing exists, and it does something more devious than a straight buff: it rewrites another creature's base power and toughness to match this one's power, resetting whatever base it started with. The subtlety is in the layers. Setting a base value to X/X does not scrub +1/+1 counters or static debuffs off the target; those still apply on top of the new base afterward. So the play is to aim the trigger at a creature whose base body is what is holding it back, a small utility creature or a token, and hand it a large frame for the turn while any counters it already carries stack on top. The Simic framing is right on the flavor: this is about forcing another organism into a new shape rather than feeding it. The adapt ability is the engine that feeds X. Grow the base body with three counters, then swing and stamp that larger power onto whichever creature you choose as an X/X, so the transfer scales with how much you have invested in the attacker. That rewards linear escalation: a bigger attacker sculpts a bigger recipient. Trample is the closing detail that keeps the attacker dangerous on its own even when there is nothing worth reshaping, so the whole package holds together as a threat that also functions as a repeatable, on-attack sculpting tool for a wide green-blue board.