Kitsa, Otterball Elite, Deekah, Fractal Theorist, Intruder Alarm, and Snap

Prerequisites

• Kitsa, Otterball Elite on the battlefield
• Deekah, Fractal Theorist on the battlefield
• Intruder Alarm on the battlefield
• Snap in hand
• You control up to two lands that can tap to produce at least
• Kitsa has power 2 or greater
• available

Steps

1. Cast Snap by paying , targeting any applicable target
2. Kitsa's prowess ability and Deekah trigger
3. Resolve the Kitsa trigger, giving it +1/+1 until end of turn
4. Holding priority, activate up to two lands by tapping them, adding at least
5. Activate Kitsa by paying and tapping it, copying Snap, with the copy targeting any other creature
6. Deekah triggers, creating a 0/0 Fractal creature token and putting two +1/+1 counters on it
7. When the Fractal enters the battlefield, Intruder Alarm triggers, untapping all creatures
8. Resolve the copy of Snap, returning the targeted creature from the battlefield to its owner's hand, and untapping up to two lands
9. Repeat from step 4

Results

• Infinite LTB
• Infinite ETB
• Infinite untap of all creatures
• Infinite mana creatures you control can produce
• Infinite magecraft triggers
• Return all creatures you don't control to their owner's hand