Lightning Berserker

Dash and a firebreathing ability are two clocks that only matter when they overlap, and stapling them onto a one-power body is the whole idea. Cast it for its dash cost and it swings the turn it lands, then bounces back to your hand at the next end step before sorcery-speed removal ever gets a window at it. The pump ability is what makes that one-shot worth anything: every red mana left after the dash payment becomes another point of damage on the swing, so a dead-end topdeck late in a game turns into a repeatable, mana-scalable burst that climbs as high as your floating red allows. The recursion loop is the part that gives it legs, because returning to hand each turn means the same creature keeps paying its dash tax and keeps eating your excess mana, never sitting on the board long enough to be killed on the opponent's turn. It can be blocked like anything else, so the burst is a clock the defender has to answer, not damage they cannot touch; the threat is that you choose the turn, choose the size, and the body is never around to trade afterward. None of this reads as much on a 1/1, and that is the construction's point: a body cheap enough to cost almost nothing, an entry mode that dodges removal timing, and a mana sink that converts a topped-out hand into reach.