Repository Skaab + Karador, Ghost Chieftain + Walk the Aeons

Repository Skaab

Karador, Ghost Chieftain

Walk the Aeons

How it works

1. Cast Walk the Aeons 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.
3. When Repository Skaab enters, its exploit ability triggers, causing you to sacrifice it.
4. Repository Skaab's second ability triggers, returning Walk the Aeons from your graveyard to your hand.
5. Repeat each turn.