The Enigma Jewel // Locus of Enlightenment + Voltaic Key + Sol Ring

3-card combo · U

Verdict

Yes — this 3-card loop generates infinite colorless mana once The Enigma Jewel transforms into Locus of Enlightenment.

The Enigma Jewel // Locus of Enlightenment $1.23 ↗

Cards required: 3
Cheapest stack total: $7.85
Color identity: U
Popularity: 1,149 decks
Format: Commander

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Locus of Enlightenment copies Voltaic Key's untap trigger, targeting Voltaic Key itself; Sol Ring then refunds the loop's cost with two colorless against a one-mana activation, netting mana on each iteration. The combo lives in mono-blue artifact shells that can fill the spellbook requirement to flip The Enigma Jewel — commanders like Urza, Lord High Artificer or Sai, Master Thopterist churn through instants and sorceries naturally.

Recipe

How it works

Prerequisites

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Steps

Activate Sol Ring by tapping it, adding .
Activate Voltaic Key by paying and tapping it, targeting Sol Ring.
Locus of Enlightenment triggers, copying Voltaic Key's ability, targeting Voltaic Key.
Resolve both Voltaic Key abilities, untapping it and Sol Ring.
Repeat.

Result

Infinite untap of artifacts you control; Infinite colorless mana; Infinite mana artifacts you control can produce

Variations

Cheaper, tighter, alternate lines

Any mana rock that taps for two or more colorless works in Sol Ring's slot — Grim Monolith and Basalt Monolith both net positive under the same loop. Pair the infinite mana with Thassa's Oracle or Blue Sun's Zenith as the closer; the loop produces mana, not a win condition.