Trickery Domain: As bad as it seems?

[Trustypeaches]

No worries, my friend, it took me a few months to cotton to that local convention. Glad I could be of help.
Going back to Yorrin's guide, I am doing a thought experiment regarding dropping the concentration requirement for the Invoke Duplicity. It's a channel divinity thing ... I'll think about that for a bit. Trying to see what kind of loophole that might create.

Casting Spirit Guardians from your duplicate is the only thing I can think of being cheesy