Elite Arcanist + Brightstone Ritual + Chromatic Orrery + Pemmin's Aura

Elite Arcanist

Brightstone Ritual

Chromatic Orrery

Pemmin's Aura

How it works

1. Activate Elite Arcanist's ability by paying 1 and tapping it, casting a copy of Brightstone Ritual without paying its mana cost.
2. Resolve Brightstone Ritual, adding at least 2.
3. Activate Pemmin's Aura's first ability by paying 1, untapping Elite Arcanist.
4. Repeat.
5. If you control three or more Goblins, this combo nets infinite mana.

By imprinting Brightstone Ritual onto Elite Arcanist, you turn the creature into a dedicated ritual engine that repeatedly casts the spell for just a single mana. Pemmin's Aura acts as the vital untap loop, letting you continuously ready Elite Arcanist for a mere {U} while also providing shroud protection. Meanwhile, Chromatic Orrery ensures your color requirements are completely smoothed out by allowing you to spend the generated mana as though it were any color. As long as you control at least three Goblins to satisfy Brightstone Ritual's mana requirement, this closed loop effortlessly spins out infinite colored mana, infinite storm, and infinite magecraft triggers.