Oskar, Rubbish Reclaimer, Shrieking Drake, and Mind Over Matter

Prerequisites

• Oskar, Rubbish Reclaimer on the battlefield
• Shrieking Drake in hand
• Mind Over Matter on the battlefield
• You control a permanent that can tap to produce at least

Steps

1. Activate a mana-producing permanent by tapping it, adding
2. Activate Mind over Matter by discarding Shrieking Drake, targeting the mana-producing permanent
3. Oskar triggers, causing you to pay to cast Shrieking Drake from your graveyard
4. When Shrieking Drake enters the battlefield, it triggers, returning itself from the battlefield to your hand
5. Resolve the Mind over Matter ability from step 2, untapping the mana-producing permanent
6. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite self-discard triggers
• Infinite storm count