Exert refers to the inherent effect some Warcries apply to an attack or several subsequent attacks in order to make it Exerted once the Warcry has been activated. Attacks can be Exerted by multiple Warcries and receive the benefits of each so long as their type matches the type a Warcry supports.
The number of Exerted attacks remaining is shown on the Skill bar icon.
Channelling skills cannot be exerted.
Vaal skills cannot be exerted, except for Vaal Ground Slam which explicitly states an exception.
Multistrike and Exerted attacks: Multistrike Support supported skills cannot be exerted, although skills that inherently strikes multiple times, like Double Strike, consume one exerted attack per use of the skill.
Leech recovers an amount of life, mana, or energy shield over time, relative to the damage inflicted on an enemy. Leech is based on the damage taken by the enemy, not the amount of life removed.
Life Leech instances have the following properties by default:
Leech grants recovery to the entity that hits the target. If a minion or totem with leech hits another monster the leech will grant recovery to that minion or totem only, not the character. Leech on a trap or mine has no effect, as the source of the hit has no life to recover.