Skeleton Ship, Intruder Alarm, and Flourishing Defenses

Prerequisites

• Skeleton Ship on the battlefield
• Intruder Alarm on the battlefield
• Flourishing Defenses on the battlefield

Steps

1. Activate Skeleton Ship by tapping it, putting a -1/-1 counter on target creature
2. Flourishing Defenses triggers, creating a creature token
3. When the creature token enters, Intruder Alarm triggers, untapping all creatures
4. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers
• Infinite mana creatures you control can produce
• Infinite untap of all creatures
• Infinite -1/-1 counters