Gunfire Reborn - Cat Elemental Damage Priority (Elite/Nightmare)
Miasma and Explosion fusion builds are good. You can also have Triple Fusion damage if you use Gemini shared elemental effect. Talisman is a flexible sub-weapon for that exact purpose. Don't bother with upgrading Energy Orb.
Credit to https://gunfirereborn.fandom.com/wiki/Ascensions for the images.
