Cernunnos/Lore

A beast god of Celtic lore, worshipped by Druids. He has deer antlers and is usually pictured with horned snakes. He is the god of the dead, hunting, fertility, and vegetation. He is thought to be the lord of the underworld, or rather the realm after life, and the keeper that guards the gate between life and death. While being a god of fertility, his purpose is to actually harvest the souls of the dead and ferry them to their next lives, so he is believed to be a grim reaper of sorts as well.