Possessed Barbarian

Threshold designs of this era split into two camps: cards that just got bigger, and cards that became something else. This is firmly the latter, and the transformation is the entire pitch. With a thin graveyard it is a first-striking 3/3, fine on the swing-back and otherwise unremarkable. Saturate the yard and it stops being a red creature at all: it grows, shifts to black, and picks up a repeatable kill switch aimed squarely back at the color it just abandoned. A red four-drop that arms itself to assassinate other red creatures reads almost like a defection, the kind of color-pie wrinkle that fit an era preoccupied with black's encroachment on the rest of the wheel. The removal mode costs and a tap, so it is a grindy outlet rather than a tempo play: a full turn and three mana to erase an opposing red threat, which only matters against another red deck. That narrowness is the catch. The payoff for the digging is a destroy ability dead against half the field. The flavor follows the function rather than being bolted on at threshold: this is a Human Barbarian Horror from the moment it hits the battlefield, the Horror already latent in the type line, and graveyard saturation simply completes the corruption it was always carrying, turning the Barbarian into something that hunts its own kind.