"Summons an aura that poisons and roots nearby enemies!"

Summons an aura that has a 7.5% chance to poison and roots enemies after checking for valid targets within range (i.e., within the aura's AoE) every 0.25 seconds. Meaning, that Paralytic Venomstone effectively has a 0.25 second cooldown which is bounded by a 7.5% chance to activate.