Ghor-Clan Rampager

In Commander, Ghor-Clan Rampager earns its slot as a surprise pump spell in Gruul voltron and combat-centric aggro lists — bloodrush dodges counterspells and removal that would otherwise eat an Aura or Equipment, and the trample riders on both the bloodrush and the creature itself matter enormously in a format defined by chump-blockers. In Modern and Pioneer, it sees fringe play in Gruul aggro shells that want redundant trampling threats, though it mostly loses the numbers game against cheaper or more flexible options. Legacy and Vintage have better tools for the mana, so it's a non-factor competitively. Commander is where Ghor-Clan Rampager is most at home — not because the format is slow, but because instant-speed uncounterable pump at a critical attack step is exactly what combat-focused decks need.