By suiting up Hydra Omnivore with Grafted Exoskeleton, you completely bypass the need to grind down traditional life totals. Thanks to the Equipment's infect ability, the damage dealt by Hydra Omnivore's triggered ability translates directly into poison counters rather than regular damage. Because infect applies to players in the form of poison counters, striking just one opponent for enough combat damage lets the Omnivore's triggered ability cascade through the rest of the table and instantly eliminate every other opponent via state-based actions.