Hangar Scrounger, and Aphetto Alchemist

Prerequisites

• Hangar Scrounger in hand
• Aphetto Alchemist on the battlefield
• Aphetto Alchemist does not have summoning sickness
• You have at least one other card in hand
• available

Steps

1. Cast Hangar Scrounger by paying
2. When Hangar Scrounger enters the battlefield, its backup ability triggers, putting a +1/+1 counter on Aphetto Alchemist and causing it to gain the printed ability until end of turn
3. Activate Aphetto Alchemist by tapping it, targeting itself
4. Aphetto Alchemist triggers, causing you to rummage
5. Resolve the Aphetto Alchemist ability from step 3, untapping it
6. Repeat from step 3

Results

• Infinite draw triggers
• Infinite rummaging
• Infinite self-discard triggers