The Master, Formed Anew, Ruthless Technomancer, Dack's Duplicate, and Training Grounds

Prerequisites

• The Master, Formed Anew in hand
• Ruthless Technomancer in exile
• Dack's Duplicate on the battlefield
• Training Grounds on the battlefield
• Dack's Duplicate 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 Dack's Duplicate 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 Dack's Duplicate from your graveyard to the battlefield as a copy of The Master, which causes the Dack's Duplicate to be a copy of Ruthless Technomancer
5. When Dack's Duplicate 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 Dack's Duplicate 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