Thanks for the replies! I really appreciate it!
My GID is Tengu316-5082. I'd really appreciate someone taking a look at what I've got (and what I need).
I pulled the Assassin PDK and he does one hit of physical and one hit of magic damage. He has two green slots and one purple. I've got him on a team to make use of his revive/heal abilities (my guys never seem to last long). Right now, my best team of both PvE and PvP is Doomsday Eddie (fully sharded), Clairvoyant, and Derby Demon (Sentinel). The Derby Demon will be replaced with my latest character, Lilith (Magus), as soon as I can figure out what to do with her. My goal is to come up with a half-way decent PvE team. It's not that I want to rank really high in Arena or anything, but I figure PvP is tons tougher than PvE so if I come up with a good PvP team, PvE should be a bit easier for me.
So taking what you both suggested, I equipped my PDK with Resilience (Barrier) to boost his HP since his magic and attack were highest. Then I added Warp (Ward) to boost his magic based on his HP (figured there was some synergy between those two). Then I got stuck, so I chose Boost (Bulwark) for no reason whatsoever other than I already had them at 5*.
Does that sound about right (Boost not withstanding)?
Sorry for the length; trying to see if my logic is anywhere close to how you guys think!
Thanks again!