This deck tries to take advantage of all the extra rules in this event. Nahids Distillation, Okessa and Banners take advantage of the sheep. Hall of Lost Kings and the slow early game are good because of the 5 extra life and this deck can take advantage of the 2 more maximum power by playing really strong cards (like Martyr Chains or Hall of the lost Kings) way to early. Look for a solid powerbase (about 3 power, FTTJJ) and at least 1 merchant in your starting hand. Interaction (Prideleader, Vanquish/Pristine Light) and Okessa + expensive relic are great too.
Good luck and have fun!