Lots of good choices. You've managed to grab a ton of really useful champs. Grats!

Now that you have a campaign farmer (Kael), your next objective is to start working on a Dragon team - eventually reaching at least L16, preferrably L20. To that end, you generally need a few things for a workable team:

1) Boss damage - Geomancer is great for this, especially since he's affinity-agnostic

2) Wave clear - For now, use Kael. Eventually we'll want to swap him out for someone else, though

3) Crowd-control - This is your weakest area unfortunately. For now your best bet is probably Alure, but she's really not great for this

4) Support/Turn-Meter - Apoth is perfect here

5) Flex - basically whatever works best based on who you have. In this case I'd probably go with Adelyn. She's good enough to be worth booking, but even unbooked she's pretty decent. 

So, to that end, I'd probably bring Apoth to 50 first, and then Geomancer. Check back in after you do that and we'll see if you have better champs.

Thank you - very helpful tips! I'll 60 Apoth first, then Geomancer.

Another question - I have 9 epic skill tombs right now. Should I feed all to Geomancer, or should I wait?

The general rule of thumb is to never use resources on anyone until they are ready to be used. For Geomancer, though, you can use him on your dragon team at 50, since his damage comes entirely from his passive. So, yeah go ahead and use them.

Thank you! 😁