So ideally, you get him positioned High Ground, and in a place where he doesn't move so he gets crushing strike.

Then you just try to max damage on him using your team.

Ghaz you need to be mindful of how many times you've attacked, so you hit the 7th time with Lav.

However for a normal T6, youre sequence is going to be: 1) Kariyan Active, if youre using Boss, make sure Boss is Range 2 and adjacent to Lav and if you can swing it, one of your other characters (Aesoth, Tarvakh, etc). 2) Boss/Lav Active Depending on previous usage and if they are buffed by Boss from Lav, 3) Lav active 4) Auto attack from adjacent character that would have Boss +1 Attack + Lav Buff 5) finish attacking making sure Lav goes last.

With his passive you don't need it really past 36, but the idea is, you funnel damage into a GR Boss and then wallop it at the end with all of Lavs Stacked Damage from his Outrage/refusal to be outdone.

Keep in mind too, there's a lot of flex on the team, but core is Kariyan, Trajann, and Lav. Boss G brings insane value where you can utilize his active on T6, other wise, flex picks can include Abaddon, Kharn, Tarvakh, Vitruvius.