I have been playing a Cleric whose sub-class is the Twilight Domain from Tasha's Cauldron of Everything. I have been using the official Tasha's version of the domain, but there is an Unearthed Arcana version of the domain that was published before the Tasha's version. The two versions of the subclass are fairly similar in theme, and presumably WotC made changes in the Tasha's version that improved balance issues with the UA version.
I'm curious about the differences between the UA and the Tasha's version of the domain. I've put a bunch of context for this interest at the bottom of this question (but I don't consider it critical to giving a good answer).
What I'm wondering here is whether using this alternate subclass is likely to cause balance issues that we aren't seeing yet. Specifically:
- Are there any official resources that discuss the reasons for the changes between the UA version and Tasha's version of the Twilight Domain?
- Are there substantially unbalanced abilities in the UA version of the Twilight Domain that we should be aware of? (In particular, I suspect that the level 17 ability might be worth rethinking.)
- Are there other (good subjective) experiences with rebalancing the Twilight Domain at your table and how to make it more fun/strategic for the whole party?
(Not necessary for answering the question—just an explanation of the motivation here.)
In the campaign we are currently playing, it is becoming clear that my character is quite overpowered with respect to the rest of the group. (I'm not asserting here that the Twilight domain is generally overpowered—though that seems to be a popular assumption in many forums—just that my character is more powerful than anyone else's, in part due to other choices during character generation). In chatting with my GM about this, we came to the agreement that the UA Twilight Domain appears to be less powerful than the Tasha's version and have adopted most of its features in place of the Tasha's features in order to make the game more fun for everyone (we are currently level 7). Simultaneously, the UA version of the domain fits better with certain ways that I've interpreted the Twilight Domain for my character, so the change feels like a win-win.
So far, this change appears to have worked for our party—since the change, we have been substantially more challenged by encounters tuned for our CR, and my character's ability to influence combat feels much more aligned with the rest of the party. Previously, the twilight sanctuary ability (when I managed it wisely) tended to make our harder fights pretty trivial; now it just helps out in these fights. (FWIW I suspect we accidentally built a party that could exploit this ability well.)