Madness, Avatar of Gwiddion

The Sage of Sages, The Archmage of Archmages, the Avatar of Gwiddion, the first amongst Planeswalkers, the Secret Hoarder.

The mage Madness has been known by many names. He is an extremely powerful caster and was considered for the post of God of Magic during the coming of the Elder Gods; he eventually lost out to Gwiddion at the insistence of Cerberus.