What necro builds will top in S18?
Or do you have any idea to mix up the new items in patch 2.6.6, that you might want to give a go?
maybe flavor of time 
and still LoN ofcourse.
Looking at some theorycrafting on 3 Necro RGK builds for Non-Season only. All other multipliers damage number assumed to stay the same then the items which change between the builds are
Gem Amu/Ring1/Ring2
A. Inarius RGK Enforcer Trav/Compass/CoE
B. 2.6.5 LoN RGK Enforcer Kalan/Wailing/Litany
C. 2.6.6 LoN RGK LoD Kalan/SoJ/CoE
Comparing the items which change and the change in effective multiplier for these items (assuming all other things stay the same) all at maximum ranges using the following calculation:
Multiplier = Physical * Elite * EndWalk * LoN * Inarius * Enforcer * CoE
Inarius RGK
Multiplier = (1+40%) * (1+16%) * (1+100%) * (1+0%) * (1+10,000%) * (1+60%) * (1+67%) = 875x
2.6.5 LoN RGK
Multiplier = (1+80%) * (1+16%) * (1+0%) * (1+9,750%) * (1+0%) * (1+60%) * (1+0%) = 329x
2.6.6 LoN RGK
Multiplier = (1+100%) * (1+46%) * (1+0%) * (1+9,750%) * (1+0%) * (1+0%) * (1+67%) = 479x
So it seems to me that new LoD gem setup for 2.6.6 will buff LoN RGK by c. 46% versus current build running LoN rings but still far behind Inarius.
Any thoughts on if this is correct, agree, disagree ?