I'm thinking about running the game myself, but I do have a few questions about the Gacha RNG. First, if you get a starter character, are you allowed to use them before you unlock them? (e.g. if I get Kaeya before unlocking him in the temple, am I allowed to use him before I've completed the temple?)

Second, if you get a constellation for a character that you are allowed to use (except the traveler of course), am I correct in assuming you are not allowed to activate them?

Finally, the rules state that weapons obtained from the Gacha are not allowed. I can guess this means the 5-star and 4-star weapons, but does this also include 3-star weapons like Cool Steel and Sharpshooter's Oath or not?

Thanks in advance for taking the time to answer my questions

The rules about gacha rewards are a bit confusing but I think you got them correctly. No weapons acquired through wishes can be used (or used for enhancement), none of the wish-only characters can be played nor used as constellation (except Noelle for some reason). The rules are unclear about what to do if you somehow obtain Kaeya/Lisa before you unlocked them.

To answer your question a different way, in all current AR categories even if wishing was allowed, it is simply too slow and will never be worth it in the end. Not to mention you can't collect mail rewards which means you are left with 2/3 whishes at best during your run.

yeah, I thought they were a bit weird. thanks for clarifying a bit, though. appreciate it