I've shared my ideal SMN previously but this time I would like to share my personal opinion on how to fix the job.
▪Physick scales with INT and/or Sustain returns as a skill
▪Aetherflow is unavailable when you are under the effect of Aetherflow.
▪You can now stack the effects of Aetherflow and Aethertrail Attunement.
▪Just like the SCH trait, spending Aetherflow stacks reduces Aetherflow's cooldown by 5s or reduce Aetherflow's cooldown by 45s.
▪Revert Bane back from its previous version.
▪Increase Tri-Bind to 50 potency and lower the MP cost.
▪Revert Shadowflare to how it worked previously...or delete it and buff other AoEs to compensate.
▪Ruin upgrades to Ruin III but keeps the MP cost.
▪Ruin IV is reworked from a proc to being only available during Dreadwyrm Trance, which also replaces Ruin III during the trance.
▪Aetherpact and Devotion is either removed or reworked. I prefer it to be an AoE buff with a 180s cooldown.
▪Demi-Bahamut auto attacks on its own, changes target depending on who the Summoner attacks after. He stays still unless the enemy target is too far away from him, NOT the Summoner.
▪Summon Bahamut only requires one Dreadwyrm Aether cost. Adjustments would probably be needed to potencies so SMN is not too powerful.
¤ Honestly I'd love to give Demi-Bahamut a couple more ogcd attacks of his own you can command, short cooldowns (maybe 6s) that are also shared. One is a single-target, one is an AoE but both aren't as powerful as Akh Morn.
▪Enkindle Bahamut's recast becomes 30s.
Pretty much I used the PvP version as an example because it's a lot better to play in my opinion.I'd remove the Egi pets too and make them similar to Demi-Bahamut but I talked about that in my previous post...
The adjustments would hopefully make the job a lot less punishing and a lot more engaging with AoEs. It wouldn't fix the bloat or Ruin-spamming however.