how to crit anything preferance to psionics

[Korivan]

As the title suggests, looking for ways to achieve critical hits on just about anything, perhaps even those with heavy fortification.

So far, theres the weapon augmentation crystals.

anything else? any powers?

[Ravens_cry]

While probably not what you are looking for, the burst enchantments extra damage still goes off on a critical, even on things immune to said crits.

[Novawurmson]

Student of War (http://www.d20pfsrd.com/classes/prestige-classes/other-paizo/s-z/student-of-war) (PF) prestige class; capstone allows it to make a Knowledge check to avoid a creature's innate immunity to critical hits. Doesn't help that much, either :P

[Diarmuid]

Deathstrike Bracers from MIC will let you crit/sneak attack most normally immune creatures with melee for 1 round (swift activation, 3/day) but doesnt seem like it would work on Fortification.

[Yorae]

Wands of Grave Strike / Vine Strike / Grave Strike may help.

Perhaps some kind of targeted dispel effect to suppress the crit negation?