Marneus Calgar, Drake Haven, and Mind Over Matter

Prerequisites

• Marneus Calgar on the battlefield
• Drake Haven on the battlefield
• Mind Over Matter on the battlefield
• You have at least one card in hand
• You control a mana-producing permanent

Steps

1. Activate a mana-producing permanent by tapping it, adding at least
2. Activate Mind over Matter by discarding a card, targeting a mana-producing permanent
3. Drake Haven triggers, causing you to pay to create a 2/2 Drake creature token
4. When the Drake enters the battlefield, Marneus triggers, causing you to draw a card
5. Resolve the Mind over Matter ability from step 2, untapping the mana-producing permanent
6. Repeat

Results

• Infinite draw triggers
• Infinite rummaging
• Infinite self-discard triggers
• Near-infinite creature tokens
• Near-infinite ETB