Orthion, Hero of Lavabrink, Thornbite Staff, and Reckless Barbarian

Prerequisites

• Orthion, Hero of Lavabrink on the battlefield
• Thornbite Staff on the battlefield
• Reckless Barbarian on the battlefield
• Orthion does not have summoning sickness
• Thornbite Staff attached to Orthion
• available

Steps

1. Activate Orthion's second ability by paying and tapping it, creating five token copies of Reckless Barbarian with haste
2. Activate the five Reckless Barbarian tokens by sacrificing them, adding ten
3. When the Reckless Barbarian tokens die, Orthion triggers, untapping itself
4. Repeat
5. Once you have infinite mana, you may forego sacrificing the Reckless Barbarian tokens and/or target any other creature

Results

• Infinite copies of creatures you control with haste
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite red mana
• Infinite sacrifice triggers