You now have three colourless mana floating, and can do it again: tap Basalt Monolith to make three more colourless mana, pay three to untap it, copy the ability using two colourless and Rings of Brighthearth, untap Basalt Monolith once, tap it to make three more colourless, and then untap it with the copied ability
These moments sell for around $10-$20 each
When Disorienting Choice resolves, the next opponent in turn order that controls a permanent chosen with Disorienting Choice decides whether to exile that permanent
That's totally fine, because we've got plenty of synergy with our noncreature spellcasting to make up for it
Normally costing nine mana, Sorcerous Squall costs one less generic mana for each card you exile from your graveyard, potentially reducing it all the way down to just three blue mana