Poison

Poison is a minor character appearing only during the prologue of Misery of Magic.

Appearance
Poison is green all over with a long, sharp tail. He wears a manacle on his back right leg. His eyes are partially dark.

In-Game
His role is to guide Emerald through Poison's Lair and explain how to return to Earth. He is never seen after leaving the first area.

Lore
Poison is only ever seen as a flickering image of himself, which might imply that he is a Psycho Power projection, although this is not confirmed. It appears that he designed the Lair to experiment on those entering the Domain, as Ending 15 implies.