Unctus, Grand Metatect, Forensic Researcher, and Kelpie Guide

Prerequisites

• Unctus, Grand Metatect on the battlefield
• Forensic Researcher on the battlefield
• Kelpie Guide on the battlefield
• Forensic Researcher and Kelpie Guide do not have summoning sickness

Steps

1. Activate Forensic Researcher by tapping it, targeting Kelpie Guide
2. Forensic Researcher triggers, causing you to loot
3. Resolve the Forensic Researcher ability, untapping Kelpie Guide
4. Activate Kelpie Guide by tapping it, targeting Forensic Researcher
5. Kelpie Guide triggers, causing you to loot
6. Resolve the Kelpie Guide ability, untapping Forensic Researcher
7. Repeat

Results

• Infinite self-discard triggers
• Infinite draw triggers
• Infinite looting