Atla Palani, Nest Tender, Ashnod's Altar, and Arcane Adaptation

Prerequisites

• Atla Palani, Nest Tender on the battlefield
• Ashnod's Altar on the battlefield
• Arcane Adaptation on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing another creature
2. When the creature dies as an Egg due to Arcane Adaptation, Atla triggers, revealing a creature card from your library and putting it onto the battlefield
3. Repeat as desired / able

Results

• Near-infinite ETB
• Near-infinite LTB
• Near-infinite colorless mana
• Near-infinite death triggers
• Near-infinite sacrifice triggers
• Put all creature cards in your library onto the battlefield, then into your graveyard