Orthion, Hero of Lavabrink, Umbral Mantle, Su-Chi, and Phyrexian Altar

Prerequisites

• Orthion, Hero of Lavabrink on the battlefield
• Umbral Mantle on the battlefield
• Su-Chi on the battlefield
• Phyrexian Altar on the battlefield
• Orthion does not have summoning sickness
• Umbral Mantle attached to Orthion
• available

Steps

1. Activate Orthion's second ability by paying and tapping it, creating five token copies of Su-Chi with haste
2. Activate Phyrexian Altar three times by sacrificing three Su-Chi tokens, adding
3. When the Su-Chi tokens die, they trigger, adding twelve
4. Activate Orthion by paying and untapping it, giving it +2/+2 until end of turn
5. Repeat
6. Once you have infinite mana, you may instead target any other creature you control

Results

• Infinite colored mana
• Infinite colorless mana
• Infinite copies of creatures you control with haste
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinitely large Orthion until end of turn
• Infinite sacrifice triggers