Warchanter Skald, Intruder Alarm, and Cryptolith Rite

Prerequisites

• Warchanter Skald on the battlefield
• Intruder Alarm on the battlefield
• Cryptolith Rite on the battlefield
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Steps

1. Activate Warchanter Skald by tapping it, adding one mana of any color
2. Warchanter Skald triggers, creating a 2/1 Dwarf Berserker creature token
3. The Dwarf Berserker enters the battlefield, triggering Intruder Alarm, untapping all creatures
4. Repeat

Results

• Infinite colored mana
• Infinite creature tokens
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite untap of creatures