Cast the creature in your hand by paying its mana cost.
Chulane triggers, causing you to draw a card and put Azorius Chancery from your hand onto the battlefield untapped due to The Wandering Minstrel.
When Azorius Chancery enters, it and Retreat to Coralhelm trigger.
Holding priority, activate Azorius Chancery by tapping it, adding due to Nyxbloom Ancient.
Resolve the Azorius Chancery trigger, returning it from your hand to the battlefield.
Resolve the Retreat to Coralhelm trigger, untapping Chulane.
Resolve the creature spell cast in step 1.
Activate Chulane by paying 3 and tapping it, returning the creature from the battlefield to your hand.
Repeat.
This elegant loop turns the gentle art of exploring the planes into an infinite engine, anchored by Chulane, Teller of Tales casting and bouncing your creatures while drawing you cards. Every time a land enters the fray, Retreat to Coralhelm untaps Chulane so he's always ready to scoop your creatures back to hand, while The Wandering Minstrel ensures those lands arrive completely untapped and ready to work. The true alchemical multiplier here is Nyxbloom Ancient, turning Azorius Chancery's mana production into a massive triple-yield windfall that easily funds the entire loop's repeating costs.