The Gay Necromancer

The Gay Necromancer, otherwise known as OfficialLesbian is a member of twitch chat and master of Lesbian Magic.

Biff's resurrection
Biff was stabbed and killed in The Grocery Store by Swordman221. It was revealed that Doug had hired Swordman221 to kill him. After this The Gay Necromancer made their debut by resurrecting Biff with lesbian magic.

Billy Mays theory
It is theorised by some that the reason that Billy Mays came back after dying of cocaine overdose was The Gay Necromancer resurrecting him with lesbian magic but this is yet to be confirmed in any way.