There is another good option for an INT-based Chaplain build that you don’t have listed, which is a Cleric 1, Priest 3, Chaplain, Druid 2 build.
I find for people wanting to solo, that is the only build that really offers enough damage to be able to effectively cope with the high health of monsters in late game - though you will still face some difficulty since grinding solo will be a nightmare late game no matter what.
However, if you’re more interested in party dungeon and group play, something like the Cleric 2, Priest 3, Chaplain, Plague Doctor or Cleric, Priest 3, Chaplain, Krivis, Plague Doctor build would be better. When you’re dealing with party snobs (which you will find a lot of late game), a lot of them aren’t willing to invite Cleric classes that don’t offer Daino and/or 10+ heal tiles.
Parties either want you to be able to bring lots of heals to the group, or the ability to stack more buffs so they can do more damage and kill faster. They really aren’t concerned with the amount of damage you can give out, because your damage will still be lower than anyone else’s at that point.
That’s just how it is. If they wanted more damage, they would just take someone else and be able to kill faster and level faster, it gives them absolutely no incentive to bring you.
I would say there really isn’t a Chaplain build that is very effective at being able to be a good party support AND a good solo play character, you really have to choose one or the other when it comes to Chaplains due to how the late game is set up. I have 4 Chaplains of different types, and that is what I have found the case to be. I still love all my Chaplains either way, but honestly the Cleric 2/Plague Doctor one is the one that always gets the most invites, with the Druid 2 build getting the second highest amount of invites (more so for field-leveling than dungeons).
If you’re anything like me, I think seeing some of these builds in action might be beneficial so you can tell which type would better suit your playstyle, as that is the most important thing at the end of the day.
If you don’t like how a character plays, it’ll never end up reaching Rank 7, so that’s very important to keep in mind when building your character. Be sure to make it something you want to play.
These are the Druid 2 INT-based build against random mobs and against a boss:
Here’s an INT-based Cleric 1, Priest 3, Chaplain, Krivis, Plague Doctor build soloing a high level mission (2 bosses at once):
For the Druid 2 build against Dullahan, watch when she has to heal herself. Notice how even as an INT-based character her 5 heal tiles are just barely enough heals for herself? That is what it will be like at high levels doing content if you don’t have Cleric 2, there won’t be enough heal times to go around for 5 people and it will create a lot of frustration. So if you go with a build that doesn’t include Cleric 2, be prepared for that scenario.