Hydra Omnivore | Tainted Strike

Cards

Tainted Strike in hand.
Hydra Omnivore on the battlefield.
An opponent cannot block
Hydra Omnivore.
You have a way to increase
Hydra Omnivore's power by 1 or more, or each opponent has at least one poison counter.
({B} magic symbol) available.

Cast
Tainted Strike by paying ({B} magic symbol) , giving
Hydra Omnivore +1/+0 and infect until end of turn.
Deal combat damage to an opponent using
Hydra Omnivore, causing them to get at least nine poison counters.
The opponent loses the game as a state-based action due to having ten or more poison counters.
Hydra Omnivore triggers, causing each other opponent to get at least nine poison counters.
Each remaining opponent loses the game as a state-based action due to having ten or more poison counters.