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
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Theres another wrinkle Im looking forward to: the Oracles ability to destroy a creature that commits to attacking but then cant
That's where cards that win the game for not having cards in your library come into play
Also, I dont think Stormbreath Dragon is even that great and I should probably just be playing Melira Company. Well, faithful reader, that was quite the mouthful