UltimaGabe said:
Well, in some cases it's not as good (since it only works against one person, and they get to make a save, and you have to be within range), but in others, it's MUCH better.
I'll grant that in some cases it is better, but I still think that amount of times when invisibility is better outweighs the number of times that cloud mind is better. Sometimes burning hands is better than cone of cold (like when your fighting a white dragon) but over all cone of cold is still a more powerful spell.
As far as I know, nothing else in the game, with the exception of a 9th-level spell released in Complete Arcane, can foil Blindsight-
srd said:
Deafening attacks thwart blindsight if it relies on hearing.
If you read the creature descriptions, you'll see that most rely on hearing, or by using echolocation, which specifically says that it is thwarted by a silence spell.
Also, they have very limited application, but its worth noting that hide from undead and hide from animals both fool blindsense.
With this Power on, assuming they fail their save, there's NOTHING they can do to see you. NOTHING. Even if it's only one person, it's still pretty darn powerful for a 2nd-level spell.
First of all, they fact they get a save at all is a pretty big deal. Secondly, what about dispel magic/psionics? Okay, maybe you'd have to realize the spell was targetting you, or include yourself in the area. Still its better than NOTHING.
Or your friend could take a move action to say "hey, why can't you see the guy in front of you!" to give you a new will save.
As I see it cloud mind is only better than invisibility if you are fighting/trying to sneak by a lone enemy who has a low Will save and has some sort of better than normal senses.
A lone enemy with a low Will save, and regular vision, they're pretty equal.
Multple enemies or high Will save, invisibility is better, and I think you're more likely to run into either multiple enemies or creatures with good Will saves than you are to run into creatures with blindsight.
Lastly, since it hasn't been brought up yet, cloud mind is mind-affecting, thus has no effect on constructs, plants, undead, oozes, vermin, and any miscalanious enemies I forgot.