In an Izzet deck where you can run effects like Najal, the Storm Runner to pop this off at instant speed, this could win on the spot in certain instances
Champion of the Path rewards you for playing big creatures by dealing damage equal to their power whenever another elemental enters
To see if, over the course of the next while, these various powerful cards see play like I think they will
Combine Moraugs ability with Felhide Spiritbinder, snag haste and a power boost via Kragma Warcaller, generate a ton of mana with Neheb, the Eternal you should have no problem shifting or solidifying the balance of power at the table if this spell resolves
Fast mana from Sol Ring, Ancient Tomb, Skirk Prospector, and Jeska's Will help you to cast key pieces early, while Lightning Greaves, Swiftfoot Boots, and Thousand-Year Elixir make sure that Krenko can tap right away and survive removal