Yedora, Grave Gardener, Beifong's Bounty Hunters, and Phyrexian Altar

Prerequisites

• Yedora, Grave Gardener on the battlefield
• Beifong's Bounty Hunters on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing the first additional creature
2. When the creature dies, Yedora and Beifong's Bounty Hunters trigger
3. Resolve the Beifong's Bounty Hunters trigger, earthbending a land
4. Resolve the Yedora trigger, returning the first creature from your graveyard to the battlefield face-down as a Forest
5. Activate Phyrexian Altar by sacrificing the second creature
6. When the second creature dies, Yedora and Beifong's Bounty Hunters trigger
7. Resolve the Yedora trigger, returning the second creature from your graveyard to the battlefield face-down as a Forest
8. Resolve the Beifong's Bounty Hunters trigger, earthbending the first creature
9. Activate the first and second creature by tapping them, adding
10. Activate Phyrexian Altar by sacrificing the first creature
11. When the creature dies, Yedora and Beifong's Bounty Hunters trigger
12. Resolve the Beifong's Bounty Hunters trigger, returning the creature from your graveyard to the battlefield
13. Resolve the Yedora trigger, doing nothing
14. Activate Phyrexian Altar by sacrificing the first creature
15. When the creature dies, Yedora and Beifong's Bounty Hunters trigger
16. Resolve the Yedora trigger, returning the first creature from your graveyard to the battlefield face-down as a Forest land
17. Resolve the Beifong's Bounty Hunters trigger, earthbending the second creature
18. Activate Phyrexian Altar by sacrificing the second creature
19. When the creature dies, Yedora and Beifong's Bounty Hunters trigger
20. Resolve the Beifong's Bounty Hunters trigger, returning the creature from your graveyard to the battlefield
21. Resolve the Yedora trigger, doing nothing
22. Repeat from step 5

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite landfall triggers