I remember this. Too bad I only remember certain things from last time, so let's do this all again, starting with Part 1.
Power
>Jingle-all-the-Way (10)
I need all the power I can get
Enchantments
>Snowsword
>Yeti's Strength
>Grinch Tamer
>Feasts and Sweets
>Fa La La La La La
>Sleigh Ride
>Big Spirit
>Enhancement
>Ice Jelly
>Christmas Cannon
I wanted to fight, and these will help with that somehow.
Allies
>Stecca
Can support from a distance
>Nina
Can fight alongside me and can capture things which could be useful
>Silva & Belle
Healing magic is pretty nice in a battle, and Belle can be taught healing magic and other stuff as well
>Eve
Sounds like quite the fighter and her forcefields could protect the more fragile members of the squad
Missions
>Hunt Abominations
The main thing I will be doing due to my build
>Raid Rogues
I got plenty of power for this as well, and one of the captured witches could point us towards where Marian is
>Avenge Santa
With the above mission done, we should hopefully figure out where Marian is and defeat her in battle
Part 2
Power
>Holly Jolly, By Golly
I need more power
Enchantments
>Step Into Christmas
While risky, this does make me stronger
>The Nutcracker Suite
More firepower is nice
>Here Comes Santa Claus
Strengthens teammates and summons my nutcrackers for when I need them repositioned for whatever reason
North Pole sounds nice, but I got a shitload of things that buff my offensive capabilities so it isn't completely necessary. Eternal Eve would probably only be good at bailing from a battle if things go south as it does consume a lot of Christmas Spirit to utilize.
Allies
>Oria
Those suits sound handy for regaining some spent Christmas Spirit, allowing for more efficent usage of abilities and thus my squad can fight for longer
>Marian
Her Santa-killing experience would be of value to a combat squad like mine
Missions
>Slay Santa
Marian will be helpful as she did something like this before, plus my Ice Jelly enchantment will protect me from his snow shenanigans and his other attacks when I face him directly. If Santa tries to go after the rest of my squad instead of me, Eve's barrier should hold him off or I can use Sleigh Ride to bail them out.
>Ward off an Ultimate Evil
Having Holly Jolly, Step Into Christmas, and all of my other enchantments will ensure I have a ton of power to command which gives me good odds against this creature.
>Prepare the After Party
This is rather unusual, but even warriors need a break, and my squad has a few things that could help with this. I got Feasts and Sweets for cooking stuff, Oria can work on the decorations, Silva and Belle can probably help with the kid-friendly side of the party, and I'm sure the others can do something to make this party great.