Well lets pull out the cat out of the hat and say that summoner didn't aged well with the things that summoner is as of right now.
No support for the summoner for the mythic paths - let's face it, there is no support for the summoner in the mythic paths and that makes summoners less likely to be picked, I mean what would you pick the ranger with beastlord dedication or apocalypse rider or an summoner who has nothing since none of the mythic paths were designed for character that uses 2 characters rather than an minion.
Lack of reactions - Summoner unlike classes like champion divine reflexes, rogue preparation, gunslinger Slinger's Reflexes, swashbucler Reflexive Riposte, ect ect, lacks any ability to get additional reaction, throught any of feats, meaning you are stuck between either using aid and never using the reaction feats that summoner has like Protective Bond or Eidolon's Opportunity, would that be an great issue to introduce an feat that gives eidolon additional reactions, so that he could use theses while summoner uses his reation to either aid or do something else like casting shield cantrip?
Energy heart and energy wrath - those 2 are kinda weird, Energy heart replaces your attack damage like slashing into elemental damage type, rather than adding elemental damage type that is given to monsters in addition to their normal attacks, with is kinda bummer, and eidolon wrath, this should have been an upgrade to ranged combatant rather than an aoe attack,
I think Energy heart and dual energy heart should be giving eidolon persistant damage to their attacks rather than turning them into elemental damage types
As for the eidolon wrath, this should have been an ranged combatand next feat that instead of creating an aoe, it would make ranged attacks stronger.Add aoe elemental attack to the elemental eidolon instead.
Bloodletting claws, blood frenzy and merciless rend should be reworked- right now both of theses feel, empty one is just an 2 attacks with one action and the other is just afflicting bleed to the enemy on crit, thats it, blood frenzy is a weird seething frenzy that needs bleeding target with is very specific.
What I could have done is making Bloodlettling claws into Affliction attacks, this way you can get persistent venom/bleed into your eidolons attacks, while blood frenzy would be an upgrade that adds more persistent bleed/venom to your attacks.
As for merciless rend, it would be merciless assault with still will be an 2 attacks in the price of one action, but you can choose if they are secondary or primary and they both count as an first attack, so you don't need to worry about MAP falling out after activating this attack, however after it, you need to take map for the next attacks and merciless assault can be activated once per turn.
Here are some ideas that could make summoner better, sure there are other issues like beast and draconic not having scent (imprecise) or eidolon boost having weak scaling, especially since you can replace it with the bards couragious anthem, but what do you guys think and what other things should summoner get in order to be better or is summoner good and does not need any changes?
