[Feat] Critical Heal

[Throndir]

http://dandwiki.com/wiki/Critical_Heal_(3.5e_Feat)

Critical Heal [General]
Your healing spells have a chance to score a critical hit
Prerequisite: Spell focus (conjuration)
Benefit: Whenever you cast a Conjuration (healing) spell, roll 1d20. If the roll results in a natural 20, it is considered as a critical heal threat. Make a Wisdom check with the DC equal to the spell's DC (you can take neither 10 nor 20 on the check). If you succeed, make one thing of the following:
If the spell heals variable amount of damage, roll the amount twice and count the result as the total of the two rolls.
If the spell heals numeric amount of damage, simply multiply that amount by 2
If the spell lasts more than one round, make the rolls every round. Successful critical heal applies only to that round in which it has been achieved.