Poisoned

Poisoned is a rules term introduced in Mirrodin Besieged. A player is poisoned if they have any poison counters. It doesn't matter how many poison counters the player has, as long as they have more than zero. Some creatures become stronger if the opponent is poisoned.

Rules
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Creatures that benefit from opponents being "poisoned"

 * Chained Throatseeker
 * Mycosynth Fiend
 * Phyrexian Swarmlord
 * Septic Rats
 * Viridian Betrayers
 * Whispering Specter

Instants that benefit from opponents being "poisoned"

 * Corrupted Resolve