Thor, God of Thunder, Walk the Aeons, and Roon of the Hidden Realm

Prerequisites

• Thor, God of Thunder on the battlefield
• Walk the Aeons in hand
• Roon of the Hidden Realm on the battlefield
• each turn available

Steps

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

Results

• Infinite turns
• Lock