Quote Originally Posted by VortexMagus View Post
So in theory you could build a team with Solomon and Takemikazuchi/Behemoth that enabled you to run tricolor Kamihimes with full damage AND in the process get significant bonuses to Solomon's damage. That's interesting, and maybe even relevant if you had Takemikazuchi and a bunch of powerful Kamihimes of her three elements (or if you had Behemoth and a mix of powerful kamis of her elements), but that seems like a really niche area to me, and I think most people would still be better off running Andromeda or Mordred in their teams.

Plus to maximize the tri-element Kamis you'd need a friends list full of people using the same Eidolon, which is pretty rare.
Tri-element is kind of a low ceiling thing. Let's say you have Takemikazuchi/Behemoth and you select another of the same eidolon as support. Great, an instant 60-100% boost to attack to a three-element team! But then the question is, how do you grow further in power from there?
Go over every avenue of power growth in this game and consider how applicable it is to a particular idea. Sooner or later you think about Assault skills. Then you realize that there's a finite X number of Assault skills equipped at once that eventually have to be divided up three ways for a tri-element strategy. You'd only have to divide your weapon grid in half in a dual-element strategy, or not divide at all in a single element strategy.

The value in multi-element buffs is when the gacha hates you and you don't even have the pieces to run single element in the first place. Or if you can't even fully run dual-element yet. When your concern is more about the floor than the ceiling.