Repository Skaab, Capture of Jingzhou, and Karador, Ghost Chieftain

Prerequisites

• Repository Skaab in hand or in the graveyard
• Capture of Jingzhou in hand
• Karador, Ghost Chieftain on the battlefield
• each turn available

Steps

1. Cast Capture of Jingzhou by paying its mana cost, causing you to take an extra turn after this one
2. Cast Repository Skaab either from your hand or from your graveyard by paying
3. When Repository Skaab enters, its exploit ability triggers, causing you to sacrifice it
4. Repository Skaab's second ability triggers, returning Capture of Jingzhou from your graveyard to your hand
5. Repeat each turn

Results

• Infinite turns
• Lock