
StevieV |

The Synthesist Archtype just might points out the flaws in the Summoner class on it own if its apparent DPR is too high.
The damage comparison would be unfair; since of course a summoner with a weapon will deal more damage, generally speaking (the Eidilon is the source of all damage in both cases). The issue, then, is the vulnerability of the unsuited Summoner (the only real weakness of the summoner) relative to the borderline invulnerability of the suited. You are trading action economy for lowered vulnerability.
That being said, I'm only trying to see if being a Synthesist is a net gain or a net loss on DPR for the trading of the Action economy vs vulnerability. A Vanilla Summoner can get his own AC decent enough to survive at least a few hits and at level 14 onward to you to kill both to remove them as they can trade hp back and forth. I'm intrigued with quite a few builds where the Reg. Summoner rides his Eidolon into battle grabbing mounted combat feats. Though I'm unsure if that cause the Eidolon to lose out on its attacks and AoO's while being ridden.
Comparing a Vanilla Summoner to an Synthesist allows us to say where or not the Synthesist deserves features to ease usage of said class features to be on par with vanilla, balance of the Summoner versus other classes non-withstanding.
But I admit after reading more and more on Synthesist I think summoning monsters while the Eidolon is out is not in keeping with the Synthesist archtype. Synthesist's summon an outsider into themselves to be the frontline fighter themselves. They don't need to summon peons.
A more sane balanced Synthesist just might be found by reducing the AC the Fused Eidolon provides by half and increasing the speed you summon it at as you aren't fully summoning it to this plane.
If you wish to be extra tanky you should have to spend points and/or spell slots (evolution surge) to do so, it shouldn't be free.
Also allowing a limited amount of feats to be available only when fused just plain makes sense as melee characters get more feats, but may not be necessary.
But the only way for me to be sure of any of this to actually to get a chance to play one. My Magus is still going on strong though in my current campaign and is unlike to die unless I purposely jump him off a cliff. So it will be a bit.
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Thanks for the opinions.