Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Jet, Freedom Fighter, Hex Parasite, and Phyrexian Altar

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Jet, Freedom Fighter on the battlefield
• Hex Parasite on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Jet
2. When Jet dies, its persist ability and second ability trigger
3. Resolve the second trigger, putting a +1/+1 counter on Hex Parasite and another creature you control
4. Resolve the persist trigger, returning Jet from your graveyard to the battlefield with a -1/-1 counter on it
5. When Jet enters, its first and second ability triggers, dealing damage to a creature an opponent controls
6. Activate Phyrexian Altar by sacrificing Hex Parasite, adding
7. When Hex Parasite dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
8. Activate Hex Parasite by paying , removing the -1/-1 counter from Jet
9. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite +1/+1 counters
• Destroy all creatures opponents control
• Destroy any creature that enters the battlefield under an opponent's control