The Master, Formed Anew, Ruthless Technomancer, Progenitor Mimic, and Training Grounds

Prerequisites

• The Master, Formed Anew in hand
• Ruthless Technomancer in exile
• Progenitor Mimic on the battlefield
• Training Grounds on the battlefield
• Progenitor Mimic has a power of at least 2
• available

Steps

1. Cast The Master by paying
2. When The Master enters the battlefield, it triggers, causing you to sacrifice Progenitor Mimic and create at least two Treasure tokens
3. Activate a Treasure by tapping and sacrificing it, adding
4. Activate The Master by paying and sacrificing a Treasure, returning Progenitor Mimic from your graveyard to the battlefield as a copy of The Master, which causes the Progenitor Mimic to be a copy of Ruthless Technomancer
5. When Progenitor Mimic enters the battlefield, it triggers, causing you to sacrifice The Master and create two Treasure tokens
6. Activate a Treasure by tapping and sacrificing it, adding
7. Activate Progenitor Mimic by paying and sacrificing a Treasure, returning The Master from your graveyard to the battlefield as a copy of Ruthless Technomancer
8. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers