Zombie Boa

Color-hosing built into a body, but pointed at the combat step rather than the spell. The activated ability names a color (any color, chosen fresh each activation) and turns the next block by that color into a death sentence, which makes this less a creature that swings for three and more one that interrogates an opponent's defenses before they commit. The sorcery-speed clause is the leash: you set the trap on your own turn, in advance, so the threat lives entirely in the attack you telegraph rather than in a surprise during combat. An opponent who knows the color is locked can simply block with something else, so the card functions more as a deterrent than a guaranteed two-for-one; its value sits in the blocks it discourages as much as the creatures it kills. The design belongs to an early-era taste for folding selective hate into bodies rather than into sweeping protection clauses or punisher enchantments: a single color's worth of intimidation, reapplied each turn and retargetable as the board shifts. The repeatable activation means the choice resets, so against a multicolor wall it can rotate which color it threatens turn to turn, but the reinvestment and the can't-react timing keep it honest as a midrange threat rather than a runaway engine. The result is a creature that wants to be feared more than it wants to fight.