Endless Depths

Calling upon the inner strength of your ki, this spell extends your spellcasting ability at great personal expense. After completion of this spell, you may cast spells beyond your normal restriction of spells per day, although not spells of a level the character cannot currently cast. Each time you do this, you take temporary Constitution damage equal to the level of the spell cast. Characters who reduce themselves to 0 (or less) Constitution due to this spell are unraveled by the Void and may not be raised or resurrected. You could still be restored by divine intervention or wish.