Sephiroth, Fallen Hero, Anax, Hardened in the Forge, Cathars' Crusade, and Ashnod's Altar

Prerequisites

• Sephiroth, Fallen Hero on the battlefield
• Anax, Hardened in the Forge on the battlefield
• Cathars' Crusade on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Sephiroth, adding
2. When Sephiroth dies, Anax triggers, creating two 1/1 Satyr creature tokens
3. When the Satyrs enter the battlefield, Cathars' Crusade triggers twice, putting two +1/+1 counters on each creature you control
4. Activate Ashnod's Altar by sacrificing a Satyr, adding
5. Activate Sephiroth by paying and sacrificing a Satyr, returning Sephiroth from your graveyard to the battlefield
6. When Sephiroth enters, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite creature tokens
• Infinite +1/+1 counters