Dack Fayden, Helping Hand, Venser, Fervent Forger, and Brainstorm

Prerequisites

• Dack Fayden, Helping Hand in hand
• Venser, Fervent Forger in hand
• Brainstorm in hand
• available

Steps

1. Cast Brainstorm by paying , causing you to draw three cards and then put two cards from your hand onto the top of your library
2. Ensure the top card will be Venser
3. Cast Dack by paying
4. When it enters, it triggers, revealing Venser from your library, then putting it onto the battlefield goaded, and then giving control of Venser to an opponent
5. When Venser enters, it triggers, creating two token copies of Venser as the original Venser is under an opponent's control
6. Put all but one Venser into your graveyard due to the legend rule
7. The two Venser tokens' abilities each trigger
8. Resolve the first trigger, creating two token copies of Venser
9. Repeat from step 4

Results

• Infinite artifact ETB
• Infinite artifact tokens
• Infinite copies of permanents opponents control
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite landfall triggers