usually, the sorc wouldn't need xan to speedrun anything under 2mins. but i assumed guy above was talking about a pushing build. nothing boost your damage more than xan. vex gives you about x1.2, ohm x1.15
xan will the overpower surely does more than that. with this build, i also assume his cdr is cap, attackspeed is cap at 146 in combat with 3 blade active. that means casting 3 BL every second => 2 teleport per sec if he knows what he's doing=> xan procs every 2 secs which is nice.
but obviously dude above is kinda lost lol.
other than that, stay the hell away from xan, it sucks and i hate having raheir to be able to fortify for OP hit
with the qax, neo is nice. ahu also works well with qax. tp has high lucky hit chance. build already running starless, dropping invigorating conduit if no mana issue and go precision magic on skill tree for more lucky hit chance, i'm pretty sure this proc even more often than neo. but that's just my playstyle.
For ahu to work well, you need an injured enemy => life bellow 80%. I like the carefree nature of neo. You just do your thing and the buff pops up. Qax is a 2x multiplier.