Sethron, Hurloon General, Cloudstone Curio, Universal Automaton, and Ashnod's Altar

Prerequisites

• Sethron, Hurloon General on the battlefield
• Cloudstone Curio on the battlefield
• Universal Automaton in hand
• Ashnod's Altar on the battlefield
• available

Steps

1. Cast Universal Automaton by paying
2. Universal Automaton enters the battlefield, triggering Sethron, creating a 2/2 Minotaur creature token
3. The Minotaur enters the battlefield, triggering Cloudstone Curio, returning Universal Automaton from the battlefield to your hand
4. Activate Ashnod's Altar by sacrificing the Minotaur token, adding
5. Repeat

Results

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