Genshin Impact World of Warcraft

Connection:

Both are two calm and distant Demon Hunters, with green tattoos extending across their entire upper body

Both they may appear scary and distant from the outside, btu they're willing to sacrifice themselves for their land and for others from the shadows, without asking for or accepting anything in return

Both are incredibly ancient beings, born from a magical and mythical species of beings blessed by legendary entities

Both were aided by and are connected to a god who has control and dominion over the earth and a highly respected entity for their lands (Morax or Rex Lapiz, the Geo Archon and god of the people from Liyue, who created Xiao and saved him by earning Xiao's undying loyalty, and Cenarius, Lord of the Forest and patron god of many druids, who was Illidan's former teacher, but Illidan ended up rejecting his teachings and betraying him)