Cultivator Colossus, Infinite Reflection, Enduring Renewal, Nature's Revolt, and Ashnod's Altar

Prerequisites

• Cultivator Colossus on the battlefield
• Infinite Reflection on the battlefield
• Enduring Renewal on the battlefield
• Nature's Revolt on the battlefield
• Ashnod's Altar on the battlefield
• You have at least one land card in hand
• Infinite Reflection attached to Cultivator Colossus

Steps

1. Play any land from your hand
2. The land enters the battlefield as a copy of Cultivator Colossus due to Nature's Revolt and Infinite Reflection
3. When the land enters the battlefield, it triggers
4. Holding priority, activate Ashnod's Altar by sacrificing the land, adding
5. When the land dies, Enduring Renewal triggers, returning the land to your hand from your graveyard
6. Resolve the land's trigger from step 3, causing you to put the land onto the battlefield from your hand, draw a card, and then decline to put another land onto the battlefield
7. Repeat from step 2

Results

• Infinite card draw
• Infinite colorless mana
• Infinite death triggers
• Infinite draw triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count
• Near-infinite colorless mana
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite sacrifice triggers