I've had some questions on Zergasauru Rex's build while playing on Khyber so I thought I'd post it here. Some of this was previously posted under Sithali's thread.
Zerg is super fun to play and always contributes to the party.
The concept behind this build is to be a pure archer and to do decent range damage even when many shot and 10K stars are on cool-downs. To fill in the gap, I hit the Kensai +8 strength power surge and 20% damage boost (racial). Of course, those stack with many shot or 10K stars, increasing the burst DPS opportunities too. I've placed a high priority on increasing crits.
When in her best destiny, Fury of the Wild, I lay down adrenaline over top of all 3 phases of the above cycle.
Generally she stays in Mountain stance for increased con, AC, and PRR
12 ftr - access to the full Kensai enhancement tree including +1 crit range, Kensai power boost +8 strength boost for 60 sec. Also helpful is the full +1 BAB per level and weapon bonus feats.
6 monk - You need 6 monk to get the 10,000 stars feat. This also provides wisdom bonus to AC, movement speed, and mountain stance.
2 ranger - bow strength, rapid shot, spell points for cocoon.
16 +5 level ups +5 tome
16 +5 tome for Combat Archery feat
Lvl 27 (with ship buffs)
44 (53 with kensai power surge)
Improved critical: Ranged
Doubleshot (10% doubleshot epic destiny feat)
Guardian angel epic destiny feat
Grandmaster of forms
Weapon focus: Ranged
Weapon specialization: Ranged
Greater weapon focus: Ranged
Past life ranger (x2)
Epic past life Colors of the Queen
Improved precise shot
Ten thousand stars
Half-elf dilettante: Cleric
Half-elf: arcane archer
Half elf dilettante upgrades (gives 95% chance on heal scrolls)
Human versatility damage boost: +20% for 30 s
Kensai Keen edge : +1 to critical threat range
Kensai Power surge: +8 psionic bonus to strength
Kensai Improved dodge
Arcane archer Conjure arrows
Arcane archer Morphic arrows
Arcane archer Elemental arrows x2
Arcane archer Paralyzing arrows