Tayam, Luminous Enigma, Sengir, the Dark Baron, Ashnod's Altar, and Safehold Elite

Prerequisites

• Tayam, Luminous Enigma on the battlefield
• Sengir, the Dark Baron on the battlefield
• Ashnod's Altar on the battlefield
• Safehold Elite on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Safehold Elite, adding
2. Safehold Elite dies, triggering its persist ability and Sengir's first ability
3. Resolve the Safehold Elite trigger, returning it from your graveyard to the battlefield with a -1/-1 counter and a vigilance counter on it
4. Resolve the Sengir trigger, putting two +1/+1 counters on it
5. Activate Tayam by paying , removing a +1/+1 counter from Sengir, and both counters from Safehold Elite
6. Holding priority, activate Ashnod's Altar by sacrificing Safehold Elite, adding
7. Repeat steps 2-4 one additional time
8. Activate Ashnod's Altar by sacrificing Safehold Elite, adding
9. Resolve Tayam's ability from step 5, causing you to mill three cards and returning Safehold Elite from your graveyard to the battlefield
10. Repeat

Results

• Infinite +1/+1 counters on Sengir
• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite self-mill
• Put all permanents with mana value three or less from your graveyard and library onto the battlefield