Instant 700 Potency cure for 0 MP on one minute cooldown.

Uses:
-"O S---! THAT (insert DPS) STOOD IN BAD!" *Heals instantly*
-"Well, I can DPS a bit longer, then drop Clerics, give a Regen, oGCD pop Tetragrammaton, then keep DPSing afterwards"
-"Well, my healing partner is dead and I need to be able to heal the tank!" *Pops Swiftcast + Raise on healer, then pop Tetragrammaton on tank during GCD cooldown*
-"My tank is about 50% HP and currently has infirmity / malady! I give no craps!" *Pops Tetragrammaton*

It's a small but wondrous utility and just adds another layer of healing that a WHM can employ to suit a party and/or circumstance. While Cure II can certainly be better, why look a gift horse in the mouth when you can basically say "Here's a free slightly more powerful Cure II that casts instantly!"