Heroes of the Storm: Guldan Hero DLC Global Battle.net

Gul'dan, Darkness Incarnate, is a ranged assassin hero from the Warcraft franchise. Abandoning the ways of shamanism, Gul'dan entered a pact with the demon lord Kil'jaeden and betrayed his people in exchange for limitless power. With the orcish Horde under his master's thrall, both Draenor and Azeroth nearly fell into his grasp.

Gul'dan is a sustained damage mage who uses his health as fuel but can steal life.

About the base game:

Heroes of the Storm is a free-to-play online team brawler by Blizzard Entertainment that brings together iconic characters from across the Blizzard universe—Warcraft, StarCraft, Diablo, Overwatch, and more. Players form teams of five and battle across diverse battlegrounds, each with unique objectives, in fast-paced strategic matches that emphasize teamwork, map control, and hero synergy.