Lathliss, Dragon Queen, Universal Automaton, Cloudstone Curio, and Birgi, God of Storytelling // Harnfel, Horn of Bounty

Prerequisites

• Lathliss, Dragon Queen on the battlefield
• Universal Automaton in hand
• Cloudstone Curio on the battlefield
• Birgi, God of Storytelling // Harnfel, Horn of Bounty on the battlefield
• available

Steps

1. Cast Universal Automaton by paying
2. Birgi triggers, adding
3. Universal Automaton enters the battlefield, triggering Lathliss, creating a 5/5 Dragon creature token
4. The Dragon enters the battlefield, triggering Cloudstone Curio, returning Universal Automaton from the battlefield to your hand
5. Repeat

Results

• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count