Synthesist Summoner - Eidolon Ability Score Increases?


Rules Questions


Does the synthesist summoner's eidolon get its ability score increases when it reaches 4, 8 and 12 HD? I would imagine yes as ability score increases are tied to HD and nothing indicates that the eidolon has somehow lost its own HD when merged. It is only called out on not getting skills or feats of its own.

The synthesist is also listed as gaining access to all the special abilities of the eidolon and ability score increases are listed under special abilities in the eidolon table. Does mean that the synthesist gets the eidolon's ability score increases in addition to their own when merged? If this were true does the eidolon also get the ability score increase for itself? Or is this just an artifact of the table format where the ability score increase for the eidolon is not really an applicable special ability and instead is just a reminder that all characters get increases in ability scores every 4 HD?

I was thinking that it is the third option and just the way the table was written but the ability score increase is listed as an extraordinary ability adding credence that it is an ability that the summoner could gain access to. I cannot imagine this was the intent of the developer to give the synthesis summoner extra ability score increases and I hope any GM in a home game would disallow such a view but maybe a FAQ is needed for formal play.


Soporific Lotus wrote:

Does the synthesist summoner's eidolon get its ability score increases when it reaches 4, 8 and 12 HD? I would imagine yes as ability score increases are tied to HD and nothing indicates that the eidolon has somehow lost its own HD when merged. It is only called out on not getting skills or feats of its own.

The synthesist is also listed as gaining access to all the special abilities of the eidolon and ability score increases are listed under special abilities in the eidolon table. Does mean that the synthesist gets the eidolon's ability score increases in addition to their own when merged? If this were true does the eidolon also get the ability score increase for itself? Or is this just an artifact of the table format where the ability score increase for the eidolon is not really an applicable special ability and instead is just a reminder that all characters get increases in ability scores every 4 HD?

I was thinking that it is the third option and just the way the table was written but the ability score increase is listed as an extraordinary ability adding credence that it is an ability that the summoner could gain access to. I cannot imagine this was the intent of the developer to give the synthesis summoner extra ability score increases and I hope any GM in a home game would disallow such a view but maybe a FAQ is needed for formal play.

Yes you get the ability increases. I think only the physical ability increases of the Eidolon and the mental abilities increases for the summoner applies when fused.

The synthesist gets Eidonlon's physical abilities but uses his own mental abilities. So if the Eidolon ability increases goes into physical you are using it, if it goes into mental it is replaced by the summoner's.

If the summoner increases his own physical abilities that gets replaced by the Eidolon.

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