LV Boss Mechanic (help)

[Bozao]

Hello everyone!
Could someone explain the mechanics of the LV tree boss?

We've already gone through it three times, each time in a different way that wasn't repeatable because someone always dies during the cleave.

Thank you.

[Rubius]

Mechanics for all of the Left + Right Wings (which includes Sarthain, the boss you're referencing) are now mentioned here on the Wiki page:
https://wiki.returnofreckoning.com/Lost_Vale

This should have the info you need! Middle Wing mechanics will also be added in the future, but in the meantime player guides will be the best place to find help for that wing.

[shoelessHN]

You need to make sure everyone is stacking to share the cleave, split up when the beams spawn to kill npcs on the sides -- detaunt when running away helps incase you eat an unguarded cleave.

You can detaunt before the non-shared cleave if you get the timing down. And obviously having enough hitpoints to eat all the cleaves damage helps a bit.

I've also seen lower hp dps stand behind him and take no cleaves at all, but then they're not sharing the damage from the other one.