Yedora, Grave Gardener, Temur Charger, and Ashnod's Altar

Prerequisites

• Yedora, Grave Gardener on the battlefield
• Temur Charger on the battlefield
• Ashnod's Altar on the battlefield
• You have a green card in hand

Steps

1. Activate Ashnod's Altar by sacrificing Temur Charger, adding
2. Temur Charger dies, triggering Yedora, returning Temur Charger from your graveyard to the battlefield face down as a Forest land
3. Activate Temur Charger by tapping it, adding
4. Activate Temur Charger's morph ability by revealing a green card from your hand, turning Temur Charger face up
5. Temur Charger triggers, giving target creature trample until end of turn
6. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite green mana
• Infinite landfall triggers
• Infinite LTB
• Infinite sacrifice triggers