I am also running mono-Blue Sage of the Beyond to play into this as well
Ghired's Belligerence Red spells that distribute X damage are good, and youll have a populate trigger each time a creature is dealt damage this way and killed later
Take, for example, this Jeskai Superfriends deck piloted by Waifugate in the first Fandom Legends tournament with Throne of Eldraine : Creatures (3) Planeswalkers (16) 4 Teferi, Time Raveler 1 Kasmina, Enigmatic Mentor 2 Saheeli, Sublime Artificer 4 Narset, Parter of Veils 3 Sarkhan the Masterless 1 Ugin, the Ineffable 1 Chandra, Awakened Inferno Lands (27) Spells (14) In this list, Fires of Invention is being used simply as a value engine
Plus, you can discard a card and spend two black mana to Proliferate, opening up a whole world of complex combos to pull off
Square Enix licensing constraints: The licensing agreement means WotC has no organic reprint flexibility outside the original set window beyond what the license permits
New additions from MH3 can potentially give them the power boost they need to compete again.