This one looks rough.
1k+ unit reward.
It's a combination boss event/LTQ.
From what little I was able to find, it looks like just one quest, beat on the boss until he randomly drops 9 different reindeer. Seeing as how a lot of the high levels can only do nine bosses, I hope the drop rate is quite high or there will be a lot of whining.
Edit: looks like 9 individual units with three individual rares. Maybe they won't repeat. Lol, you know they will. Let the whining commence.