The Jolly Balloon Man, and Sky Hussar

Prerequisites

• The Jolly Balloon Man on the battlefield
• Sky Hussar on the battlefield

Steps

1. Activate a creature by tapping it, adding
2. Activate The Jolly Balloon Man by paying and tapping it, creating a token copy of Sky Hussar that is a 1/1 Balloon with flying and haste in addition to its other types
3. When the Sky Hussar token enters the battlefield, it triggers, untapping all creatures you control
4. Repeat

Results

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