Unchained Berserker

Protection from white on a small aggressive body is a targeted piece of hate, not a keyword granted for elegance. The whole design is pointed at one color's answers: it slips past white blockers, shrugs off Pacifism-style enchantments that would try to lock it down, and can't be picked off by white removal that resolves through targeting. Against the game's most defensive color, it becomes a clock white struggles to interact with, the ideal shape for a red aggro deck staring down lifegain and cheap chump blockers. The attacking bonus sharpens the point: it sits back as a nonthreatening 1/1 on defense, then swings as a 3/1, so it only commits to the beatdown when it's your turn to press. That asymmetry is deliberate. It doesn't want to trade in combat; it wants to keep connecting with a player whose color of choice was supposed to stop it. Color-hate creatures like this have appeared periodically since the earliest sets, usually pushed into a color's traditional enemy to give aggressive decks a scalpel against the archetype most likely to grind them out. Read against that lineage, this is a modest but honest example: the body is small and the protection is narrow, but both are calibrated to punish a single matchup rather than to be broadly good.