Burnout Bashtronaut

Speed mechanics ask for a payoff you have to earn twice: once by dealing the damage that ticks the engine up, and once by keeping the body alive long enough for the max-speed reward to matter. This goblin threads that needle by carrying menace from turn one. The keyword is doing double duty: it makes the 1/1 harder to block, which means it connects, which means an opponent loses life, which is exactly the trigger that advances your speed. The creature is, in effect, its own engine-starter. Reach max speed and double strike arrives, at which point the pump turns dangerous: each activation adds a point of power that gets counted twice in combat, so a one-mana body scales into a real clock the longer a game runs. The trade the design makes is transparent. Early, it is a fragile one-power attacker asking to be raced or ignored; late, with speed maxed and mana to spare, it is a menace-carrying double-striker that punishes any board it can slip past. It rewards a deck already committed to pressuring life totals rather than one hoping to stumble into aggression, since the mechanic only advances on turns where an opponent actually bleeds. That conditionality is what keeps a one-drop with this much ceiling from being oppressive out of the gate: you cannot fast-track the reward without first proving you can land damage.