Recurring Nightmare, Phyrexian Altar, and Hornet Queen

Prerequisites

• Recurring Nightmare on the battlefield
• Phyrexian Altar on the battlefield
• Hornet Queen in the graveyard
• You control at least one creature

Steps

1. Activate Recurring Nightmare by sacrificing a creature and returning it from the battlefield to your hand, returning Hornet Queen from your graveyard to the battlefield
2. When Hornet Queen enters the battlefield, it triggers, creating four 1/1 Insect creature tokens
3. Activate Phyrexian Altar three times by sacrificing Hornet Queen and two Insects, adding
4. Cast Recurring Nightmare by paying
5. Repeat

Results

• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count