Tyrranax Rex

Poison as a wincon has always fought the same problem: infect and toxic want you to commit to small evasive threats, and small evasive threats fold to a single blocker or a sweeper. This is the answer that ignores the premise. Toxic 4 means one connection puts four of the ten poison counters on the board, and everything else on the card exists to guarantee that connection lands. The 8/8 body clears most ground blockers on rate; trample means chump-blocking only delays the poison rather than stopping it; haste collapses the clock to the turn it resolves; and ward 4 taxes the removal that would otherwise trade down for it. The uncounterable clause protects the cast itself, so the whole package resolves as a threat that has to be answered on the battlefield, at a price. What makes it notable as design is the reframing: rather than build poison around evasion and redundancy, it stacks every protective keyword onto one large creature and dares the opponent to survive two swings. Two toxic connections put eight of the ten counters down, which turns any incidental poison source into a two-turn kill and lets a single extra hit close it outright. It is the green top-end a poison deck can run without abandoning the top-end a green deck already wants: a beater that wins on damage against decks that ignore poison and on counters against decks that respect it.