I can choose to get one of this heroes as i can choose 200 soulstones of one of them, which one should i get? I already have mad inventor and cold heir
I also think Axe Punisher is best option.
He is great in raiding, GW, but also def modes with empower.
Try to get Axe Punisher; like Cichociemiak and BAbabasay, he's good in GW and PVP with Revitalize + Revive (or Empower).
Maybe your 2º option could be Massacre, since that he ignore DMG limit for 5 seg., I haven't tested it yet though, but I hope I can test him using a good build for and Devo.