The Sins refers to the seven creations of Magnus base around the biblical Seven Deadly Sins.
Pride the leader was not seen until he fused with the Horseman, Death.
Wrath was a thorn in the players side, was usually a whirling mass of chains and death or a massive knight.
Greed was a balding man who effectively drained ability scores.
Sloth was a slow large man who got creatures to do his work for him.
Lust was usually a woman of great beauty, mostly a spellcaster.
Gluttoney was a mass of fat flesh that ate and ate.
Envy was a backstabber, a rogue. He always wanted the best.