New to ROTMG, Few Questions!

Hey there guys

I have recently started playing RotMG and I'm to the point where I think it would be cool to obtain all 5 stars on a few characters. Specifically staff using classes as I really enjoy those. That being said, I don't really know what the best gear is for those classes. I've asked in chat and people just say T0 (lol) but I do think it would be helpful as a new player to keep my eye out for dungeons that I should be looking to do to get better gear. I do understand most of the best gear in the game comes from the hardest dungeons in the game. I'm okay with that! But what pieces are they (specifically for wizard) and where do they come from!

Next, since the 5th star requires 15000 fame, if I die at 5k fame but the total fame I would get from the death is over 15k, does that unlock the 5th star?

Lastly, when does the Thanksgiving event come out? I've heard it's lots of fun and great to get feedpower for pets! Is it the same every year? Is it the day before Thanksigiving (battle pass ends then)?

Thanks guys !

(Also, if there is any sort of post that has BiS gear for all classes, I'd love to see that. I looked for one but many are years outdated. Thanks again!)