Wizzard once sang "I Wish It Could Be Christmas Every Day", and while a true perpetual Christmas would have far reaching and devastating economic implications, we can at least make the dream come true in CUE - for the next three Leagues, there will be a guaranteed Festive Traditions arena! You're welcome, Roy Wood.
You'll also get Science and History arenas guaranteed.
With 14 Energy/Turn this week, and with a minimum Energy/Turn of 12, drain shouldn't really be a factor. Nor will Energy inflation, as the maximum Energy is 18.