Streetbreaker Wurm

Six power for five mana with no keywords, no evasion, and a four toughness that folds to almost any competent blocker: this is the unkeyworded Gruul beater stripped to its arithmetic. The 6/4 split is the whole design conversation. The four damage on the back end means it dies to chump-then-block math and rarely survives combat twice; the six on the front means anything that does not kill it loses the race outright. That is the bargain a top-heavy green-red curve was built to make in this era: oversized commons that asked nothing of the deck around them and offered nothing back beyond raw size, run out as a turn-five clock when the hand had no better play. It is honest in the way these fatties usually are, trading up against smaller creatures and trading down against anything with first strike or four toughness of its own. The body and the name carry more character than the rules text, which is fitting for a creature whose entire job is to be too large to ignore and too fragile to build around.