Time Sieve, Myr Battlesphere, and Karador, Ghost Chieftain

Prerequisites

• Time Sieve on the battlefield
• Myr Battlesphere in the graveyard
• Karador, Ghost Chieftain on the battlefield
• You have not cast a creature spell using Karador this turn
• each turn available

Steps

1. Cast Myr Battlesphere from your graveyard by paying
2. When Myr Battlesphere enters the battlefield, it triggers, creating four 1/1 Myr creature tokens
3. Activate Time Sieve by tapping it, sacrificing Myr Battlesphere and sacrificing the four Myr tokens, causing you to take an extra turn after this one
4. Repeat each turn

Results

• Infinite turns