Poison Shield Edit
In-game description of this Special Item Set for Heroes.
You sow the discord among your enemies. It hurts like poison. Mostly, because it actually IS poison! Activate an aura around your hero that poisons buildings and units alike, dealing damage over time. What's more, the hero and all friendly units in that aura are protected from the deadly toxic gaze of Loki's Lens.
To unlock Poison Shield, you must Craft the 3 piece Set of Discord in the Hero Equipment Crafting area of the game using either Gems or a Free Item Master Craft that you have won.
Cooldown of the Special Attack: 25 Seconds
Here is a Video by Debla from October, 2015 - Poison Shield Video Wiki.