Steelswarm Operator + Liquimetal Torque + Pemmin's Aura

Prerequisites

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Steps

1. 1Activate Liquimetal Torque by tapping it, causing Pemmin's Aura to become an artifact.
2. 2Activate Steelswarm Operator's second ability by tapping it, adding that can only be spent to activate abilities of artifacts.
3. 3Activate Pemmin's Aura by paying , untapping Steelswarm Operator.
4. 4Repeat from step 2.

Effects

• Infinite blue mana that can only be spent to activate abilities of artifacts
• Infinite blue mana that can only be spent to cast artifact spells