Forensic Gadgeteer + Mana Crypt + Urza, Lord High Artificer + Words of Wind

U identity

The 4 combo pieces

• Forensic Gadgeteer
• Mana Crypt
• Urza, Lord High Artificer
• Words of Wind

How to execute it

1. Cast Mana Crypt by paying its mana cost.
2. Forensic Gadgeteer triggers, creating a Clue token.
3. Activate Urza's first ability by tapping the Clue, adding {U}.
4. Activate Mana Crypt by tapping it, adding {C}{C}.
5. Activate Words of Wind by paying {1}, replacing the next card you would draw by causing each player to return a permanent to their hand instead.
6. Activate the Clue by paying {1} and sacrificing it, causing you to return Mana Crypt from the battlefield to your hand, and causing each opponent to return a permanent they control from the battlefield to their hand due to Words of Wind.
7. Repeat.

What the combo produces

• Cast all spells in your library
• Exile your library
• Infinite colorless mana
• Infinite storm count
• Mass Land Denial
• Return all permanents opponents control to their owner's hand