Leech

Leech is a minor attribute introduced in Warlords of Draenor. Leech causes a player to instantly return health from both outgoing damage and outgoing heals. The amount of health returned is equal to your amount of Leech, 1% of Leech will return health equal to 1% of your damage and healing done.

As an attribute, any Warlords-level or higher gear, looted or crafted, has a slight chance to be itemized with Leech.

Additionally, Leech is present on certain class abilities, buffs, enchants, and temporary effects.

Leech Rating
The table below shows the amount of leech rating required for 1% Leech: