Is the OP updated with the latest build or should I be digging through this thread more?
So with all that considered my recommended overall build is;
Runtime gear:
Obsession (in a +3 teleport base, war/rune/archon staff)
Enigma
Shako (cham)
+2/20 crafted ammy (or cheaper/worse, sub coven + maras)
Ars Baalos (protector's stone)
Magefist
2x SoJ
Arachs
Crafted caster boots (or just rare resist boots)
CTA/spirit swap
Renewed bone break, torch, anni, skillers, mana or mf scs (needed to hit some extra +mana)
Might or prayer merc with infinity + cure, either CoH or eth upped skin of the flayed one + protector's stone
Prebuff (join game) gear swaps:
Mang songs
+3 demon circlet
+3 demon ammy
+4-6 bind demon tome
8x demon skillers (keep bone break on)
Rest same as runtime gear
Prebuff (summon tainted) gear swaps:
+4-6 summon tainted tome (measured wrath is +4)
Latent flame rift
Rest same as prebuff join game gear
Skills:
20 Summon Tainted
20 Demonic Mastery
20 Blood Boil
20 Engorge
20 Bind Demon
1 Hex Siphon
1 Sigil Lethargy
(remaining points at level 98/99 can be put into blood oath)