Summoner: Eidolon Evolutions

[Adriel Naur]

So, let's say my Eidolon got twice the claw evolution, thats 4 claws, (two claws per evolution).

1. Now I want to add reach to every claw.

Reach (Ex): One of an eidolon's attacks is capable of striking at foes at a distance. Pick one attack. The eidolon's reach with that attack increases by 5 feet.

That seems to take 2 evolution points not just one ¿am i correct?

2. Now I want to add improved damage to every claw.

Improved Damage (Ex): One of the eidolon's natural attacks is particularly deadly. Select one natural attack form and increase the damage die type by one step. This evolution can be selected more than once. Its effects do not stack. Each time an eidolon selects this evolution, it applies to a different natural attack.

¿Do i need to spend one evolution point or two?

I usually get confused by terms like attack, attack action, attack form, etc. ¿Is there a place where they clarify all this stuff?

Thanks in advance.

[Faskill]

I think you need to spend one reach evolution for each claw.
Improved damage work on all claws though.

That being said, you might consider taking the Lunge feat if you need reach so badly, there are lots of evolution better than improved damage and reach, unless you're using a bite build

[Mucronis]

Summoner FAQ.

Summoner: If I choose the reach evolution for my eidolon, how many of its attacks gains increased reach?
The ability description says "pick one attack," not "pick one attack type." So if your eidolon has two claws and you pick "claw" for the reach evolution, only one claw gets increased reach. (The reach evolution is intended to let you emulate having a dragon-eidolon, as a dragon's bite attack has greater reach than its claws.)