Ovalchase Daredevil, Kheru Goldkeeper, and Hardened Academic

Prerequisites

• Ovalchase Daredevil in the graveyard
• Kheru Goldkeeper on the battlefield
• Hardened Academic on the battlefield

Steps

1. Cause an artifact to enter the battlefield under your control
2. Ovalchase Daredevil triggers, returning it from your graveyard to your hand
3. Kheru Goldkeeper triggers
4. Holding priority, activate Hardened Academic by discarding Ovalchase Daredevil
5. Resolve the Kheru Goldkeeper trigger, creating a Treasure token
6. Repeat from step 2

Results

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite artifact tokens
• Infinite Treasure tokens
• Infinite colored mana
• Infinite self-discard triggers