Thor, God of Thunder, Temporal Manipulation, and Y'shtola Rhul

Prerequisites

• Thor, God of Thunder on the battlefield
• Temporal Manipulation in hand
• Y'shtola Rhul on the battlefield
• each turn available

Steps

1. Cast Temporal Manipulation by paying its mana cost
2. Thor's second ability triggers, dealing damage to any target
3. Resolve Temporal Manipulation, causing you to take an extra turn after this one
4. Blink Thor using Y'shtola Rhul
5. When Thor enters, it triggers, allowing you to cast Temporal Manipulation from your graveyard until the end of your next turn
6. Move to your next turn
7. Cast Temporal Manipulation from your graveyard by paying its mana cost
8. Repeat from step 2

Results

• Infinite turns
• Lock