Six, Urza's Saga, Auramancer, Phyrexian Altar, and Animar, Soul of Elements

Prerequisites

• Six on the battlefield
• Urza's Saga in hand
• Auramancer in the graveyard
• Phyrexian Altar on the battlefield
• Animar, Soul of Elements on the battlefield
• Animar has at least two +1/+1 counters on it
• available

Steps

1. Cast Auramancer from your graveyard for its retrace cost by paying and discarding Urza's Saga
2. Animar triggers, putting a +1/+1 counter on it
3. When Auramancer enters the battlefield, it triggers, returning Urza's Saga from your graveyard to your hand
4. Activate Phyrexian Altar by sacrificing Auramancer, adding
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite self-discard triggers
• Infinite +1/+1 counters on Animar