Boon of the God

This spell enables its caster to temporarily trade his sight for renewed vitality, and it is usually used by Tyrran clergy only in desperate combat situations. As the last gesture of spellcasting is completed, the caster is instantly restored to unharmed condition, even if previously sorely wounded (hit points and ability scores are restored in full, missing limbs reappear, damaged organs function as if whole, and so on) – but the caster also goes blind. The boon lasts for only 6 rounds, and during that time the caster functions as if unharmed, without regard for additional, or even fatal damage suffered during that time. No spell short of a wish spell affect the caster until the boon expires, such effects are delayed. When the spell expires, all previous damage returns, and any additional harm taken during the boon is applied to the caster.

The blinded caster suffers a +2 penalty to initiative rolls, a +4 penalty to Armor Class, a -4 penalty to attack rolls, and a -2 penalty to saving throws and proficiency checks (greater, if the DM judges it appropriate to the situation). This total blindness lasts for 1 month per level of the caster unless magically cured. (A cure blindness spell applied to the caster during the 6 rounds of the boon automatically fails; only a full wish spell can overcome the lack of sight caused by a boon during this period.) The caster can drink healing potions and receive healing and other beneficial spells during the boon, and the results of these also apply at the expiration of the boon. (They are applied before new or returning damage.)