Cephid said:
1) are you sure that Psy War and Warmind levels don't stack to determine manifester level? (he's just taken warmind 1, so if you're right, he'll take PsyWar 3 instead to get double expansion)
Yes. War Minds get separate manifestation ability, unlike
some of the other psionic prestige classes.
2) Multiple effects that increase size don't stack, but polymorph changes him into a entirely new form. Then he gets a size increase effect. I don't see any reason why this would not increase his size.
There is no 'size-increasing effect' descriptor or subtype or anything. Any special effect that increases the character's size, directly or not, is a size-increasing effect.
3) "You need to use a melee weapon attack first" are you sure? So it can't be added to a flurry of blows?
The feat specifically says that you must first attack with a melee weapon, and the wording seems to imply that you really do have to use a weapon, not an unarmed strike or natural weapon, before using the Snap Kick. So a Monk, frex, would probably have to attack with kamas/nunchakus/etc. with their flurry of blows, instead of unarmed strikes, before using the Snap Kick. I could be wrong on the interpretation of this one, but I think I have the right of it.
I agree with what you are saying about dispell etc. (I've seen it hapen to him), but until that happens, he still deals a TON of dammage.
Again, most likely a problem with the polymorphing (and the fact that 3.5 Enlarge/Expansion is at least a little broken, if not very broken).
With a monks belt and the feat a monk can do 2d10 at 12th level. with just 2 size increases (levels in the psionic monk PrC) that damage reaches 6d8. (if he was a Goliath it would be 9d8).
Goliaths and Half-Giants don't get increased unarmed damage or natural weapon damage. Powerful Build only allows them to
wield weapons as though one size larger, it does not affect their damage otherwise.