Deck is great. I actually should have gotten a full 21 wins but made pretty severe play mistakes in one of my losses each of the 6-win runs. What can I say, though, I love Aid of the Hooru and any event that allows you to cast that card faster is an event I'm going to enjoy :)
Event Information
Icibrrgl PARTEE!
January 12-15, 2018
Both players start the game with +2 Maximum Power!
The ShiftstonedEternal Power Calculator is a deck-building tool that visualizes your odds of drawing enough Influence and Power based specifically on the cards found in your deck.
Those are 4 justice sigil basically. The question becomes undepleted vs. Depleted + a Scout. I find the scout to be hugely worthwhile when digging for that perfect answer.
Sorry it took me awhile to get back to you. You could definitely play the deck without Marshalls. However, if so you need to cut the Aids too. Ironthorn is a huge part of getting to 12 mana in any reasonable timeframe. Maybe the new Jotun if you have him. Otherwise, throne wardens and sword of the sky king is another option.