Kumena, Tyrant of Orazca, Deeproot Pilgrimage, and Intruder Alarm

Prerequisites

• Kumena, Tyrant of Orazca on the battlefield
• Deeproot Pilgrimage on the battlefield
• Intruder Alarm on the battlefield

Steps

1. Activate Kumena's first ability by tapping another nontoken Merfolk you control
2. Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token
3. When the Merfolk enters the battlefield, Intruder Alarm triggers, untapping all creatures
4. Resolve the Kumena ability, causing it to be unable to be blocked this turn
5. Repeat
6. You may activate Kumena's other abilities instead once you control enough Merfolks to do so, ensuring to tap at least one nontoken Merfolk each activation

Results

• Infinite +1/+1 counters among creatures you control
• Infinite card draw
• Infinite creature tokens
• Infinite draw triggers
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite untap of all creatures