Bloodghast + Boros Garrison + Retreat to Coralhelm + Zimone and Dina

WUBRG identity

Commander legal

The 4 combo pieces

• Bloodghast
• Boros Garrison
• Retreat to Coralhelm
• Zimone and Dina

How to execute it

1. Activate Zimone and Dina by tapping it and sacrificing Bloodghast, causing you to draw a card and put Boros Garrison from your hand onto the battlefield, and then repeat this process once if you control eight or more lands, putting any other land from your hand onto the battlefield instead.
2. When Boros Garrison enters the battlefield, it, Bloodghast and Retreat to Coralhelm trigger.
3. Resolve the Boros Garrison trigger, returning it from the battlefield to your hand.
4. Resolve the Bloodghast trigger, returning it from your graveyard to the battlefield.
5. Resolve the Retreat to Coralhelm trigger, untapping Zimone and Dina.
6. Repeat.

What the combo produces

• Infinite card draw
• Infinite draw triggers
• Near-infinite creature sacrifice triggers
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite landfall triggers
• Near-infinite LTB
• Put all lands from your hand and library onto the battlefield