Skeleton Ship + Intruder Alarm + Flourishing Defenses

Skeleton Ship

Intruder Alarm

Flourishing Defenses

How it works

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.

This clever loop centers around Skeleton Ship's ability to dole out -1/-1 counters, which immediately triggers Flourishing Defenses to spawn a fresh 1/1 green Elf Warrior token. Every time that token enters the battlefield, Intruder Alarm's static ability triggers to untap all creatures, including our trusty ship. This leaves Skeleton Ship freshly untapped and ready to repeat the process, turning a modest crew into an endless engine for enter-the-battlefield, death, and counter triggers.