Emptiness + Phyrexian Altar + Dundoolin Weaver

Emptiness

Phyrexian Altar

Dundoolin Weaver

How it works

1. Cast Emptiness for its evoke cost by paying .
2. When Emptiness enters, its first ability and evoke ability trigger.
3. Holding priority, activate Phyrexian Altar by sacrificing Emptiness, adding .
4. Resolve Emptiness's evoke trigger, failing to sacrifice it as it's no longer on the battlefield.
5. Resolve Emptiness's first trigger, returning Dundoolin Weaver from your graveyard to the battlefield.
6. When Dundoolin Weaver enters, it triggers, returning Emptiness from your graveyard to your hand.
7. Activate Phyrexian Altar by sacrificing Dundoolin Weaver, adding .
8. Repeat.