Consider cards like Resilient Khenra, Quarry Beetle, Hour of Promise, Sand Strangler, Without Weakness, Doomfall, Hour of Glory, Tragic Lesson (for your landfall triggers), Strategic Planning (for filling up your graveyard), Countervailing Winds, Saving Grace, and the cycling Deserts as good examples of the utility that Hour of Devastation has
You also lose life when you cast your spells, but hey, you have a big flying lifelink angel at your side
This one is either a removal spell or a finisher
Gluntch, the Bestower The only jellyfish in the set, Gluntch, the Bestower is a 0/5 for three that loves to group hug
I was sad when Fires of Invention was banned mostly because it was the best enabler of Niv-Mizzet Reborn decks, and there were so many of those that you could run even though they were never really competitive