Lena, Selfless Champion, Nim Deathmantle, and Phyrexian Altar

Prerequisites

• Lena, Selfless Champion on the battlefield
• Nim Deathmantle on the battlefield
• Phyrexian Altar on the battlefield
• You conrtol at least three additional nontoken creatures
• available

Steps

1. Activate Phyrexian Altar by sacrificing Lena, adding
2. Lena dies, triggering Nim Deathmantle, causing you to pay to return Lena from your graveyard to the battlefield, and attach Nim Deathmantle to it
3. Lena enters the battlefield, creating at least four 1/1 Soldier creature tokens
4. Activate Phyrexian Altar three times by sacrificing three Soldiers, adding
5. Repeat

Results

• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers