Combos do exist, but in order to get to them, you might well be taking some really long turns with the amount of mana producing spells and abilities that could sit in this deck
The final chapter gives you a burst of rainbow mana then resets the cycle
Similarly, a permanent entering the battlefield at the same time as Elesh Norn (still including Elesh Norn) won't cause abilities of permanents an opponent controls to trigger
Wont you use this to fizzle their removal for value to protect your own creature
Reflecting this, when the flip card transforms into its dragon form, it unlocks the ability Burning Chains, which means you win the game when your chosen rival loses it
Technically, you can put both in the same deck to churn out a swarm of flying faeries, but youll need a way to mitigate losing two life each turn