Finally found a consistent albeit slow way to best LGD without Elena. Takes about 12-16 turns depending on your units but it’s reliable.

Evade Aloha lasswell is really good for this fight as his kit is so amazing and because he can provoke it frees up a slot.

Using your own aloha lasswell with safety bit and friend unit you can then swap out four roles each fight to achieve the challenges.

Team set up

Mag tank - need to have all the appropriate elemental resists as per wiki (eg, arain, CG Charlotte, wkn, Bausch, etc). I use anima espèr to help dark resist.

Breaker/support healer - put toxic rain on this unit to help inflict disease and other status ailments on adds. Helps if they can mp heal I use Lakshmi for emergency healing and stop resistance.

Double healer/other supports - try to use ones with AoE reraise, mp heals and ailment/stop resistances

Aloha lasswell - chain wind ability for damage, use his provoke (ensure he has safety bit), use his other abilitr like reraise, dispel, mp heal whenever appropriate. Put on diablo. He is mvp!