Offensive Uses for Korg
My ally has suggested I r5 my duped 5* Korg for AW using the 4->5 gem I have. I tend to not like r5 champs for AWD because their stock drops so fast after Kabam releases a counter. With RDT so rare and rank resources so precious, it's usually not a good idea to rank for AWD unless the champ is also heavy on utility or damage. I r5 Medusa for this reason; even as her AWD stock continues to drop, she's still clutch for all kinds of content.
My other r5 are Domino and Ægon and I'm coming up on my 6th t5b with t2a in overflow. I have decent immune already such as Nebula/EF. Other skill contenders would be Blade, GP, HE or Masacre. All either duped or I have a skill AG. Future moves will be to r2 my unduped 6* Domino and r5 CG, Ghost or OR once he's duped. I'm missing most of the key synergy pieces for these champs at 5* or higher though.
TLDR: So... Thoughts on Korg to r5? Worth it? Any offensive use?