Yedora, Grave Gardener, Ainok Survivalist, and Ashnod's Altar

Prerequisites

• Yedora, Grave Gardener on the battlefield
• Ainok Survivalist on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Ainok Survivalist, adding
2. Ainok Survivalist dies, triggering Yedora, returning Ainok Survivalist to the battlefield face down as a Forest land with no other types or abilities
3. Activate Ainok Survivalist by tapping it, adding
4. Activate Ainok Survivalist's megamorph ability by paying , turning it face up with a +1/+1 counter on it
5. Ainok Survivalist triggers, destroying target artifact or enchantment an opponent controls
6. Repeat

Results

• Destroy all artifacts and enchantments opponents control
• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite landfall triggers
• Infinite LTB
• Infinite sacrifice triggers