Displacer Kitten, Mnemonic Wall, Seething Song, and Desperate Ritual

Prerequisites

• Displacer Kitten on the battlefield
• Mnemonic Wall on the battlefield
• Seething Song in the graveyard
• Desperate Ritual in hand
• available

Steps

1. Cast Desperate Ritual by paying
2. Displacer Kitten triggers, blinking Mnemonic Wall
3. Mnemonic Wall enters the battlefield, returning Seething Song from your graveyard to your hand
4. Resolve Desperate Ritual, adding
5. Cast Seething Song by paying
6. Displacer Kitten triggers, blinking Mnemonic Wall
7. Mnemonic Wall enters the battlefield, returning Desperate Ritual from your graveyard to your hand
8. Resolve Seething Song, adding
9. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite red mana
• Infinite storm count