Ongoing EducationTolarian Academy Buy + Minamo, School at Water's Edge Buy + Rings of Brighthearth Buy
With at least 4 artifacts in play, tap Academy for 4 mana, then use 1 blue and tap Minamo to untap Academy, and 2 to copy the untap using rings to untap Minamo. You're left with 1 blue mana. Repeat as needed.
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