UNIQUE - Void Corruption: For each second in combat with champions, deal 2% increased damage, stacking up to 5 times for a maximum of 10%. While this effect is fully stacked, convert 100% of the bonus damage into true damage.
MYTHIC PASSIVE: Empowers your other Legendary items with 5% magic penetration.
VOID CORRUPTION : For each second in champion combat, deal 3% bonus damage (max 15%). At maximum strength, the bonus damage is dealt as true damage instead.
MYTHIC : Grants all Legendary items 5% magic penetration