Rotting Fensnake

Five power for four mana on a body that any chip of damage erases: this is glass-cannon arithmetic taken to its extreme. The 5/1 frame is the entire negotiation. It hits as hard as creatures costing far more, but a single point of damage, a one-toughness blocker willing to trade, or a stray ping kills it before it ever connects. The lopsided line is common-rarity filler tuned for one job: a mid-curve beater that demands an answer or deals a large chunk of damage, with the understanding that the answer is usually trivial. With no abilities to lean on, the creature lives or dies on raw math. A vanilla 5/1 is a pure threat of attrition: you are trying to make the opponent spend more to stop the damage than the damage was worth, betting that any trade or block costs them a card they would rather keep. The catch is that the fragility hands them too many cheap outs. Any token, any one-drop, any incidental burn flips the calculation instantly, and the creature contributes nothing on defense once it has been raced past. This is the design where the back half of the stat line undoes all the work the front half tries to do: a deliberately disposable beatstick that asks for a fast clock and offers no reason to keep it around once the race tightens.