Destruction Domain: Clerics who find everything a battlefield.

[sandmote]

1) Yeah, I guess this is a little more "I need the effect to go off now".
2) I mean, if it's charmed for one turn, it's also a defensive ability against single targets, which makes it more useful.

Sure.

Aura Of Shattering could use some cleanup. Just wording and phrasing. I'd also allow you to extend the aura as an action OR bonus action. (Either or so you can use something like Spiritual Weapon if you like, but can cast spells otherwise.) Initially requiring an action is fine.

I've attempted a cleanup. Not sure about the action/bonus action options; I kind of want the ability that grants +30 max damage per round for multiple rounds to have some additional drawbacks.

I've also increased the damage on Embers of Wrath and will have it replace Mark for Boundless Fury.

That said, I can see that you have a vision for "destruction" that is somewhat different to my own (including I think, some references I don't get), so this is a personal view rather than something I think will match well.

Yup- I'm technically converting half a class from 4e d&d here.

What would a construction cleric be?

I believe they called that the Forge Domain.