Raid Shadow Legends – Leech debuff has risen in popularity in Raid Shadow Legends since it was buffed in September 2020 to heal for 18% of all damage dealt against any target with leech. This means that even champions who do not place the debuff can use those targets as ways to sustain their HP. It is also possible to apply Leech to targets through the Harvest Despair Mastery with a 60% chance when placing a Stun, Freeze, Sleep, Fear, or True Fear debuff.
Leech has most use against Clan Boss to enable teams to drop Lifesteal Gear or against Sorath spiderlings.

Leech debuff allows any attacker to heal for 18% of the damage they inflict including mastery procs such as War Master and Giant Slayer!