Lathliss, Dragon Queen, Universal Automaton, Cloudstone Curio, and Mana Echoes

Prerequisites

• Lathliss, Dragon Queen on the battlefield
• Universal Automaton in hand
• Cloudstone Curio on the battlefield
• Mana Echoes on the battlefield
• available

Steps

1. Cast Universal Automaton by paying
2. Universal Automaton enters the battlefield, triggering Mana Echoes and Lathliss
3. Resolve the Mana Echoes trigger, adding for each creature you control
4. Resolve the Lathliss trigger, creating a 5/5 Dragon creature token
5. The Dragon enters the battlefield, triggering Cloudstone Curio and Mana Echoes
6. Resolve the Cloudstone Curio trigger, returning Universal Automaton from the battlefield to your hand
7. Resolve the Mana Echoes trigger, adding for each Dragon you control
8. Repeat

Results

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