This Marvel Super Heroes baddie is a villain that is really a hero when it comes to using all your colored mana well
At least he doesn't get to cast them for free
On top of that, it also makes you create a 1/1 creature token whenever you cast spells from exile, which is the point of airbending
That includes 3-mana planeswalkers like Sorin, Imperious Bloodlord, Teferi, Time Raveler and Oko, Thief of Crowns that are consistently good or cards like Tibalt's Trickery that allow you to cheat out massive cards early in the game
That is, something repeated across many cards that helps make the set function
You can have a card like Bolas's Citadel or Ad Nauseam that lets you lose 20+ life in a turn and convert it into a giant Crackle with Power to win