Homebrew Mono Justice control. Been having great success with this.
Gameplan is similar to other control deck, try to survive and ramp with Icaria, Valkyrie Captain and Spire Chaplain. When you have enough power, activate your wincon Siraf, Grand Strategist. Mantle of Justice can beef up your Siraf, or just a surprise damage reach with your flyers. Sediti, the Killing Steel's onslaught is going to destroy the popular TJS control decks in Exp or just, you know, a regular 6/6 flyer on 5.
The power base is pure Sigils as I have been experiencing influence screw with Seal of Devotion and I never want to activate Decimate on Emblem of Kodosh as you need to get to 9 for Ageworn Vestige. Seek Answers has been serving me very well: get power as we are very power hungry or just draw gas.
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.