My last goal on FFBE was the missions on Morgana LGD, and after reading Alternative-Ice-7534's post and Oil_Painter's comments on it I decided to give it a go. So here it is!

The idea is to use Esther Wilhelm friend Esther and rotate the other units until you use 50 total, one of them being an 89% or 90% def breaker (also spr if you use a mage), one to dispel the boss and heal, and one DPS to give a little help to Esther. Some units like Kaito, Angeal, Zyrus etc can dispel and break/dps at the same time, which makes things easier, but here I'm giving some examples with less optimal teams:

• Vaan Eiko 2B (Vaan can actually dispel as part of his triplecast but we want to use his SLB on the burst turns)
• Galuf LM Fina Aya Brea
• Agrias Divine Chow Jill
• Avan Princess Sarah Benedicta

We build morale, reaching 200% on T2, and cross each threshold with Esther's SLB, which makes 12 turns total. You can obviously make things faster by adding strong DPS like Fundamental Force or Eithne (crossing the 2nd threshold with Esther's regular LB and the 3rd threshold 2 turns later, making it 10 turns total, but I thought it'd be easier to follow by always having her SLB in mind), but you'll run out of options sooner or later.

A few things to note:

• I use every CoW piece available to build morale. You don't need the versions for it, but it helps the extra DPS if he's not a dead weight to begin with. Sylvie's, Melissa's and Wylk's Vision Cards are great to build morale, so is Christmas Ayaka's STMR. Try to reach 170% morale on turn 1 to be able to use the morale ATK/MAG buff ability on turn 3, but Esther and other units have their own buffs in their kit so don't worry too much about it.
• Elemental resistances are important to survive the magic attacks when Wilhelm stops omnicovering. Best thing would be to give everyone 100% in every element, but that's not relly needed because Esther is OP and her magnuses give a lot of survivability for the team. Have a look at my Aya Brea in BS form and you'll see she has low elemental resistances and low spr. Sylvie's VC is great for the non DPS units.
• With breakers like Vaan, who don't have lightning imperil in his kit and whose SLB doesn't break atk/mag, we use Wilhelm's cooldown ability on the burst turns to do that for us. If the breaker have it (like Kaito and Angeal), Wilhelm can DPS.
• Don't use Wilhelm's omnicover when you get to the 49% threshold, or else he will die. From that moment on, just use his physical cover (you still can use his magnus, but use the physical cover ability right after to override the general cover).
• You might not reach the 70% threshold on turn 3 depending on variance, but if Morgana has like 71-73% HP it's fine (my turn chart covers that, and if you reach 70% just do whatever on turn 4 - never defend with anyone though). If she has more than that, might want to restart the fight.
• ¨But Raph1e, the dispel/healer unit seems kinda useless!" That's because they mostly are. You don't really need them if you're using someone who can dispel and do other things needed on the same turn, like Angeal.
• Esther's magnus reduces the cooldown timer for Wilhelm to be able to use his imperil every burst turn. You can use that magnus on Angeal instead for example.
• Always end the turn by using the free morale ability Resurging Will, to heal and recover MP for the team. On the burst turns, use Resound Will too to buff atk/mg.

Btw there’s no banner available in which we can use the "Curated NV Unit/Fragment Select Ticket" (which is the 40 unit reward), and Gumi will send you compensation if you contact support.

Here's the builds (including a few units I used in other teams, like Aya Brea) and also the message from support: https://imgur.com/a/5uzsIEp

Good luck!