Fool's Demise, Great Whale, and Phyrexian Altar

Prerequisites

• Fool's Demise on the battlefield
• Great Whale on the battlefield
• Phyrexian Altar on the battlefield
• Fool's Demise attached to Great Whale
• You control up to seven lands that can tap to produce at least

Steps

1. Activate up to seven lands by tapping them, adding at least
2. Activate Phyrexian Altar by sacrificing Great Whale, adding one mana of any color
3. Fool's Demise's first and second abilities trigger
4. Resolve the first Fool's Demise trigger, returning Great Whale from your graveyard to the battlefield
5. When Great Whale enters the battlefield, it triggers, untapping up to seven lands
6. Resolve the second Fool's Demise trigger, returning Fool's Demise to your hand from your graveyard
7. Cast Fool's Demise by paying , targeting Great Whale
8. Repeat
9. If the seven lands can tap to produce at least , this combo nets infinite colored mana

Results

• Infinite colored mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count
• Infinite untap of lands you control