Do you have a specific content you would like to try with your friends? Your build is fine. I do not recommend dropping priest2 because revive is a very good buff.
I suppose you are mainly supporting melee physical classes. Miko + Taoist supports them well.
Once you reach endgame your build will not function as a damage dealer. I think this will not be a problem because you have a static party to help you level up and quest. Therefore I suggest dropping damage skills to 1. Keep them at 1 to use their hitcount to destroy objects. High hitcount will apply card-effects too if you need more support.
I cannot view tosbase well so I will show you a build option with tips. Some skill choices I think are obvious so I will omit an explanation.
Cleric + priest
Safety zone 10/10 or more cure (hitcount). Higher safety zone is useful to combo with kagura dancing. It prevents interrupts of kagura. Take fade 1 to drop mob aggro.
Keep spamming monstrance to reduce enemy physical def. It also buffs allied dex by 30% and then adds +10 dex. Always keep revive up. The remaining skills are not needed. Pardoner shops will replace your aspersion, sacrament, blessing.
Keep a sword (or dagger) on your secondary weapon swap slot to use this attribute vs bosses. It halves their def and makes them easy to kill. Especially the end-game raid boss. Dagger attacks with C should apply stacks too. Cleric features a def break at cleric1. I hope more clerics will use this attribute.
Diev + Miko
Take 1 carve attack to destroy objects.
Miko’s clap extends your statues. If you enjoy longer duration statues to reduce keeping track of statue-cooldown you could get clap. Gohei1 to remove buffs and debuffs. Hamaya 1 for its hitcount. Try to time kagura + safety zone to prevent interrupts (unless you have a wizard friend with surespell).
Kabbal + Tao
You mentioned you would like to drop merkabah so I have removed it from the skills. I suggest nachash down to 1 just to use the high hitcount (25 hits). Combo gematria or notarikon --> gevura (or double chance). The area of gevura is a lot bigger than double chance. To use double chance you must stay very close to the enemy. If you have strong burst classes as friends and time it well, double chance will multiply their damage a lot.
The skills shown are the minimum requirements for taoist support. Take 1 storm calling + its attribute, 1 dark sight, 1 begone demon, 1 disaster charm and then max storm calling. Level creeping death charm last if you like that skill (high hitcount).
Not just you. I prefer diev1 over priest3 for PvE support too. Unless the priest3 is a chaplain + krivis3 + inquisitor1 attacker build.
