mtg incubate cards Gift of Compleation [March of the Machine] a few Incubate cards :

Mechanically, it is more or less a rework of Rapunzel - Gifted with Healing from The First Chapter, carrying almost the exact same effect, but as an action card, and being potentially slightly less flexible in real play

So no UB sets and many in-universe expansions having either a lack of planeswalkers, or simply a reskinned one

Glider Staff I know there's lots of equipment that cost 1, 2, or 3 to cast or equip to give a creature flying, but rarely are they tied to an ability as versatile as airbending

All of these actions triggering without requiring combat is extremely effective, and when paired with other ways to boost the power and toughness of creatures, all while backup Commander Director Nick Fury is reducing the cost of Heroes by 1C, you can see why this deck is being hyped up as powerful right out of the box