Ok I am not sure if you all remember the Diopsid from Dragon Compendium published by Paizo. But it was a mix of humaniod and beetle and it had four arms.
So while looking at this I thought this would be an interesting idea to add to the Kasatha, maybe in turn for trading out its normal Multi-Armed trait. Perhaps for members of the race who focused on holding items in this manner.
Extra Arms: Diopsids have four arms: their two
primary limbs and a secondary, weaker set of arms.
Their weaker limbs are poorly suited to carrying
weapons or shields, but they do an excellent job of
providing stability and support to the upper limbs.
The diopsid's extra limbs allow it to use
weapons one size category larger than normal
without penalty. The diopsid's secondary arms
must be free for it to gain this benefit. This benefit
does not extend to larger weapons. For example, a
diopsid can wield a Large longsword with a single
primary arm without penalty by steadying the
blade's pommel with its lower limb.
A diopsid can wield a pair of two-handed
weapons by using all four of its limbs. The diopsid
gains the full benefits of wielding a two-handed
weapon, such as 1-1/2 times its Strength bonus on
damage rolls. The diopsid suffers the standard
penalty for fighting with two weapons and carrying
a non-light weapon in its off hand.
A diopsid wielding a pair of two-handed
weapons is a fearsome sight. It shifts and twirls the
two weapons between its four hands, hammering its
opponent with tremendous strikes while defying its
normally clumsy, fumbling nature.
If a diopsid carries a weapon or shield in its
secondary arms while one or more of its primary
arms also carry an item, it suffers a number of
penalties. When using a shield, the diopsid takes the
shield's armor check penalty on its attack rolls and
skill checks even if it has proficiency with the shield.
When using a weapon, the diopsid gains only half its
Strength bonus on damage rolls. It takes a -4 penalty
on all attacks for each light weapon used in this
manner. This penalty increases to -8 for one-handed
weapons. The diopsid cannot carry a two-handed
weapon with just its secondary arms.
A diopsid with at least one empty hand can cast
spells with a somatic component.Limb Symmetry: A diopsid's four arms allow it to
carry and use multiple items with relative ease. A
diopsid can use its third and fourth limbs to steady a
weapon held in its primary arms, shift its weight, and
maneuver it to attack or defend. A diopsid ignores
the Dexterity prerequisite, if any, for any feat that has
the words "two-weapon" in its name, such as Two-
Weapon Fighting. The diopsid must fulfill the rest of
the feat's requirements as normal.
Would these work if you made it Kasatha instead of the diopsid?
Would anyone here allow a player to trade out Multi-armed for these possibly trading out more, and what would you trade out to make this more fair?