There are lots of interesting ways to build control, as their are a multitude of expensive different many-for-ones they can run, and a multitude of ways to lock up or secure the game
From there, you can easily funnel that mana into an overwhelming battlefield through Genesis Wave, make everyone draw their deck with Blue Suns Zenith, or just keep everyones permanents tapped down during their upkeep until you find a different way to win
I also think the synergy with Ring cards might be good enough I'd go out of my way to include them
You'll then choose your deck and the format of the challenge
Raging Tempest starts off three new themes and enhances many previously released themes, including strategies from Dimension of Chaos , Breakers of Shadow , High-Speed Riders , Wing Raiders , Dragons of Legend Unleashed , the Pendulum Domination Structure Deck , and even an upcoming Structure Deck
While Hoopa ex's 220 HP makes it easy to deal with on occasion, its relatively cheap attack cost and high damage potential make it an intriguing tech card in a variety of decks