By doubling up your second spell cast each turn, be it a sorcery, a creature, or a planeswalker, Storm lets you break one of the fundamental rules of Commander every single turn it rages on the battlefield
You can also pull double protection duty with Sterling Grove, keeping your commander safe along with a large portion of your board.
There are lots of things that trigger when things come and go from the battlefield but not quite so many that are worth building around
Every Izzet deck is going to consider Stern Scolding, but this deck loves it more than anyone else
A handful of cards help protect characters or heal their damage, including the Dinglehopper, which can continuously remove a point of damage every turn
Bladewing is overcosted at 3BBRR for a 4/4 flying body, but its two abilities make up for it and make it a fine Dragon Zombie