Fire Emblem Heroes - Lunatic 11-5 Chapter 11 Part 5 Quest with Colorless
4 * Ursula / 4* Olivia / 4* Barst all neutral
4* lv 18 Lissa with rehabilitate + kindled fire balm + fort res seal (Lissa's level + IVs do not matter, she stays out of combat and is not the bait)
p.s. i'm starting to fatigue of this game..