SHAWN NICOL's page

Rend (Ex): An eidolon learns to rip and tear the flesh of
those it attacks with its claws, gaining the rend ability.
Whenever the eidolon makes two successful claw attacks
against the same target in 1 round, its claws latch onto
the flesh and deal extra damage. This damage is equal to
the damage dealt by one claw attack plus 1-1/2 times the
eidolon’s Strength modifier. The eidolon must possess the
claws evolution to select this evolution. The summoner
must be at least 6th level before selecting this evolution.

Rending Claws (Combat)
Your claw attacks do greater harm to your enemy.
Prerequisites: Str 13, two claw natural weapon attacks,
base attack bonus +6.
Benefit: If you hit a creature with two claw attacks in
the same turn, the second claw attack deals an additional
1d6 points of damage. This damage is precision damage
and is not multiplied on a critical hit. You can use this
feat once per round.

Could I take both of these for a total of 2xClawDMG + (Claw DMG+1.5str) +1d6

Are all the feats in the available supplements available to be taken by Eidolons as long as they are capable of taking them? (Core book, Monster Manual, Advanced Players guide, ETC)
I was thinking they all were available because it doesn't specify but I just wanted to ask. This is my first summoner, heh.
From the APG:
"Feats: This is the total number of feats possessed by an
eidolon. Eidolons can select any feat that they qualify for,
but they must possess the appropriate appendages to use
some feats. Eidolon feats are set once chosen, even if the
creature changes when the summoner gains a new level. If,
due to changes, the eidolon no longer qualifies for a feat,
the feat has no effect until the eidolon once again qualifies
for the feat."

The druid in the party had cast Flaming Sphere and killed an enemy in a 5ft. hallway. Ther Barbarian wanted to Charge through the Flaming Sphere and attack the enemy that was behind the first that had died.
I wasn't sure and said he could just to speed up the game but I thought I would ask here in case it ever comes up in the future.