I tried a few solo leveling sessions with crusader: I managed around 2:35-2:45 every run including the challenge rift and getting the cube at lvl 13(with pony). Maghda\Kulle->HoA 1-3. Master rift lvl 13-~40 then t4-t1 until lvl 70. Crafted lvl 70 1h axe and used blessed hammer shield and leoric's in the cube from lvl 13. Very consistent trough all 3 runs. No extra gold and mats were used with 0 paragon of course. I got both the shield and leoric's in 2 runs from the 475 shards at lvl1. I got at least 5-6 legendaries every run from lvl 40-70 which gave even faster clear times.