Requires

Steps

1. Cast Ephemerate by paying , blinking Ratchet, causing it to enter the battlefield as Ratchet, Field Medic.
2. When Ratchet, Field Medic enters the battlefield, Preston and Soul's Attendant trigger.
3. Resolve the Preston trigger, creating a token copy of Ratchet, Field Medic that is a 0/1 Illusion.
4. Put the nontoken Ratchet into your graveyard due to the legend rule.
5. Choose not to return Ratchet to the command zone from your graveyard.
6. When the Ratchet, Field Medic token enters the battlefield, Soul's Attendant triggers, causing you to gain 1 life.
7. The Ratchet, Field Medic token triggers, causing you to convert it into Ratchet, Rescue Racer, and return Ratchet from your graveyard to the battlefield.
8. When Ratchet, Field Medic enters the battlefield, Preston and Soul's Attendant trigger.
9. Resolve the Preston trigger, creating a token copy of Ratchet, Field Medic that is a 0/1 Illusion.
10. Put the nontoken Ratchet into your graveyard due to the legend rule.
11. Choose not to return Ratchet to the command zone from your graveyard.
12. The Ratchet, Rescue Racer token triggers, as well as Soul's Attendant.
13. Resolve the Ratchet, Rescue Racer trigger, causing you to convert it into Ratchet, Field Medic.
14. Put one of the Ratchet, Field Medic tokens into your graveyard due to the legend rule.
15. Resolve the Soul's Attendant trigger, causing you to gain 1 life.
16. Repeat from step 7.

Results