The Jolly Balloon Man, and Great Oak Guardian

Prerequisites

• The Jolly Balloon Man on the battlefield
• Great Oak Guardian on the battlefield
• You control at least one creature that can tap to produce at least

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 Great Oak Guardian that is a 1/1 Balloon with flying and haste in addition to its other types
3. When the Great Oak Guardian token enters the battlefield, it triggers, untapping all creatures you control and giving them +2/+2 until end of turn
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
• Infinitely large creatures you control until end of turn