Horn of Gondor, Clock of Omens, Biotransference, and Phyrexian Altar

Prerequisites

• Horn of Gondor on the battlefield
• Clock of Omens on the battlefield
• Biotransference on the battlefield
• Phyrexian Altar on the battlefield
• You control at least four Humans
• available

Steps

1. Activate Horn of Gondor by paying and tapping it, creating at least four 1/1 Human Soldier creature tokens
2. Activate Clock of Omens by tapping two Human Soldiers, untapping Horn of Gondor
3. Activate Phyrexian Altar three times by sacrificing three Human Soldiers, adding
4. Repeat

Results

• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mana artifacts you control can produce
• Infinite sacrifice triggers
• Infinite untap of artifacts you control
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce