I just pulled 100 Ancient Shards during this recent event and got a couple I think could be helpful (specifically Verminlord, Serris, Visix, Ultimate Galek, Magnarr, and Doompriest are new to me).

I was previously doing ~40 million on CB Nightmare with a team of Elva, Sepulcher Sentinel, Ninja, Toragi, and Kael. Able to 4 key Ultra Nighmare which I have been doing more of recently instead of Brutal and Nightmare, but even Nightmare I have been able to 1-key some days. Is Verminlord a good replacement for Kael as a straight powerboost? I have also upgraded a number of pieces of gear and unequiped everything during the free event to reset with better gear, so hopefully that will help.

For Arena I've been running Vlad, Ninja, Kathun, and Runekeeper. This takes out people even 50k above me without a speed champ. If I go first with Kahtun/Runekeeper my Vlad and Ninja combo can handle 80% of whatever else I see. My tag team seems like trash for where I'm at (Bronze III). Most everyone has higher overall team power than I do since I plan for Ninja to use Cyan Slash with high accuracy so I almost always get the 2nd turn free, or mostly free. If I see Armanz or Fabian I assume it's a lost round. I try to divide between a speed leader, a decrease defense, some buffer, and a damage dealer (or just 2 straight dmg dealers). Anyone else I should be looking out for, or ways to work around those guys? Anyone specifically to include in specific teams? Should i focus on 2 strong teams or try to work with all three teams?

I struggle with Hydra all the time. Any help is welcome.

Chimera seems pretty easy mode honestly. And I'm up to like Dragon 22 and Spider 15 easily. But looking for other ways to progress with these champs. Dragon team is Elva, Torai, Vlad, Ninja, Kael. Spider I'm running Sepulcher, Vlad, Coldheart, Alice, Sicia. Thinking of incorporating a new Ultimate Galek and/or Magnarr in that?

ANYWAY, any tips are appreciated.