| Kajal |
Less really a rule in and of itself, than a reiteration of perhaps the very first rule. The GM is the final arbitrator. The sentence at the end of page 432 simply states " Some spells might function differently underwater, subject to GM discretion."
Ofcoarse this is a rather slippery position to take, especially on a rules discussion forum however, I'm of the humble opinion it is one of the most implicit rules of the game.
Glitterdust is an amazing spell with a thousand and one uses.
It's utility at the 2nd level spell caliber is unmatched. It also has longevity for it can continue to stay relevant as a caster progresses.
It gets around targeting in many instances. Not subject to SR. Decent range at Medium. Defeats Invisibility and nerfs stealth. Oh and it can blind you. If it is going to benefit from it's attributes nine times out of ten, it should be subject to the environment it so often subjugates.