Lifeblood Hydra

Most X-cost green fatties price their entire reward into the body and refund nothing when they fall, which makes every answer against them a clean, efficient trade. This one rewrites that math by paying out on death: however large it entered, it cashes that power back as life and cards once it reaches the graveyard. Removal or a chump block stops being a tidy answer and becomes a transaction the controller funded twice, since killing it triggers the very payoff the caster wanted. The trample is more load-bearing than it reads, because it lets a big body bank damage through a clogged board while you wait to collect on its eventual death. The wrinkle worth knowing is that the trigger keys specifically on dying, not on leaving the battlefield: blink it and it exiles without paying anything, then returns as a 0/0 and dies for zero. So the lines that turn it into a draw spell are the ones that route it through the graveyard at size: a sacrifice outlet while the counters are still on it, or simply letting an opponent do the work. The catch is the familiar one for a counter-based threat with no haste and no protection: it sits inert on arrival and asks the table to spend a card removing it. That demand is the engine. It is a threat that punishes being answered, which is a rarer thing in green than the rate suggests.