wanted to provide an update: build above seems to work alright, although unity and halo were not enough for me. the only way to keep my bot alive was to use unity, halo, gizzard and esoteric, otherwise it will constantly die. up to 44, it does fine, but it cannot complete a 44/45 100% of the time for example - usually runs out of time on the rift guardian, since quite a few rift guardians will murder and one shot my bot. if the rg can't instagib me, then it will generally complete within time.
thanks diegomzl, being able to clear low 40s grifts with no deaths is still much better than having 10+ deaths an hour in t6 rifts.
for reference, i am running with 710k hp and 23k toughness with frost armor on in town ( no other buffs included, toughness gets up to 45k+ in rift )
i have since changed it to use flame blades and supermassive instead of force weapon and arc lightning, which seems to work better for me, but i have not tested this extensively. with a good map and a good rg ( one that does not instantly kill me.. ) i think a 48-50 would be possible but that is unreliable.
