Sacrosanct
Legend
For a while I've wanted to build a blue dragonborn tempest cleric. It's thematic and the lightning breath weapon gives a semi-reliable way to use the push on lightning damage feature. It's good to know that such a character won't fall too behind by not getting a wisdom increase at first level. In fact, I could focus using melee weapons for damage and use spell lots on buffs and healing. And spirit guardians, because that spell is just too cool.
My highest level PC in 5e (who I just retired) is a 15th level blue dragonborn tempest cleric. I'm not an optimizer, and chose to play that character for reasons you gave. The theme sounded awesome. At level 15, my wisdom is 18 (one ASI was spent and that was it).
Not only did I not fall behind, the optimizer of our group said he was jealous lol. And that was from level 1 all the way up to level 15. I was probably one of the most combat effective classes in our group (outside of the warlock/fighter with Hazeron), even if you take away player skill and tactics. Destructive wrath is the bomb, literally.