I have already suggested several things for this event but you have to take advantage of this special 1 hour boss
I don't know if I could but ... I wish I had more things to get out of what they usually put ... like other Christmases this boss is left aside the second week and you rarely see him go again, it would be that I put an additional medium rare loot of ice walls, thrones, seats, spotlights of all colors but that are for the guild, and a very rare probability of 1 hall slot