CORE : Dagallon set + 2 set Justicar for armor bonus (Shoulder & Gloves).
AMULET : BiS is Kaisan with elemental / fire damage / OA/DA and most important +2 Fire Strike.
I had very lucky to get a Puncturing Kaisan of Destruction on my second run of Kaisan farm but fact is Nemesis farm can be annoying especially Kaisan cause you can’t farm his amulet in Shattered Realm, you can replace the amulet with a Runefather’s gem if you want but little less DPS.
RINGS : Myth Light Oak & Myth Combustion Band.
Alternative Option : Myth Sapphire & Ruby of Elemental Balance works too.
MEDAL : The Mythical Korvaak’s Brand had been buffed in 184.108.40.206 and is very good for a Fire Strike build, you can use a Mythical Pyroclasm too.
PANTS : Mythical Chausses of Barbaros for the amazing proc.
BELT : Mythical Ulzuin Torment (OA/DA, Elemental dmg, +1 Demo).
BOOTS : Mythical Wyrmscale Footguards (OA/DA, Elemental dmg, Some bonus skill & a good proc).
RELIC : Bane or Ignaffar Combustion but i prefer Bane for survival and you don’t loose too much DPS with it.
GAMEPLAY : Very simple, activate Word of Renewal for DPS/Movement Speed/Resistances boost, put your inquisitor seal, aggro mobs with Word of Pain and destroy everything with Fire Strike.
Rinse & Repeat.