Soul Drain

Soul Drain is a status effect in Demon's Souls.

General Information
Soul Drain is a rare status effect that reduces the player's Soul Level by one, removing the effects of the last time the player leveled up. There is no way to resist it and no way to cure it except by leveling up the reduced stat(s) to compensate as the soul cost to do so drops accordingly. The effects of the stat reduction are instantaneous, although one major source of the effect is instantly fatal to many player characters.

Sources of Soul Drain

 * False King Allant
 * Soulsucker (as used by Mephistopheles or another player)