|Halloween Myrrh, with armor and manakete status, comes with surprisingly doubling potential with tons of damage from her res targeting. This build relies on the auto doubling provided by Spirit Breath, using her very high defense to guarantee doubles, and Desperation 3 to make sure she can punch through almost any enemy after the first combat
Due to Myrrh's weapon, Spirit Breath, Myrrh only needs to focus on her def. Therefore, +Def is her optimal boon, and because her speed is already low and doesn't matter, -Spd is by far her best bane. +Atk is another viable boon, as atk is always good and is a scoring superboon, having a dual benefit.
Myrrh's weapon Spirit Breath defines her build and direction. Due to it automatically guaranteeing a follow up if you have more than 5 def to the opponent, due to her insanely high base defense and +3 Def on the weapon itself, Myrrh should always run this weapon.
Reposition is a generically powerful assist that allows tankier units to shuffle squishier units behind them. Swap also works.
Bonfire is the special of choice, as it scales off her ridiculous defense stat and activates every other combat, assuming the double always goes through. Against the tankiest enemies, the Bonfire activation should make sure Myrrh can win.
Brazen Atk/Def 3 synergizes with Desperation to give Myrrh an immense boost to both her damage and her doubling capability from her prf's condition. As it is only active in Desperation range, it won't work first combat, unlike Death Blow 4 that gives even more attack, but no defense whatsoever, and works on every engagement on Player Phase.
Desperation 3 is the deadly touch on this build that allows Myrrh to apply her immense burst regardless of her HP, leaving her able to push through enemies that would otherwise take her down. With her high base attack, 16 mt weapon and attack stacking from brazen skills, Myrrh will destroy any enemy with low resistance, which is to say, most enemies. Taking advantage of the swing towards defense on the bulkiest foes, the Spooky Monster can execute clean ORKOs in the vast majority of circustances.
Armor March 3 is Myrrh's best C skill, as when paired with another armor unit gives her movement second only to fliers. The fact that she comes with it also makes the decision much easier. However, other C skills such as emblem/tactics buffs also work fine.
Brazen Atk/Def 3 provides Myrrh with an additional boost to her damage, guaranteeing a bonus of 14 damage on her double before reductions of any kind. With the double brazen and an attack buff, even a +4 hone, Myrrh can easily surpass 70 attack that hits enemies' resistance.