Karn, Legacy Reforged, Strionic Resonator, Filigree Sages, and Mycosynth Lattice

Prerequisites

• Karn, Legacy Reforged on the battlefield
• Strionic Resonator on the battlefield
• Filigree Sages on the battlefield
• Mycosynth Lattice on the battlefield
• You control at least two additional artifacts
• available

Steps

1. At the beginning of your upkeep, Karn triggers
2. Holding priority, activate Strionic Resonator by paying and tapping it, copying Karn's ability
3. Resolve the copy of Karn's ability, adding for each artifact you control that cannot be spent to cast nonartifact spells
4. Activate Filigree Sages by paying , untapping Strionic Resonator
5. Repeat from step 2

Results

• Infinite colorless mana that cannot be spent to cast nonartifact spells
• Infinite colored mana
• Infinite mana permanents you control can produce
• Infinite untap of permanents you control