Rat King, Verminister + Intruder Alarm + Belonging + Goblin Bombardment

Rat King, Verminister

Intruder Alarm

Belonging

Goblin Bombardment

How it works

1. Cast Belonging by paying 5.
2. When Belonging enters, it and Intruder Alarm trigger.
3. Resolve the Belonging trigger, creating three 1/1 Shapeshifter creature tokens with changeling.
4. When the Shapeshifters enter, Intruder Alarm triggers three times. Resolve the Intruder Alarm triggers from this step and step 2, untapping all creatures four times.
5. Activate Goblin Bombardment by sacrificing Belonging.
6. Activate Rat King by tapping it and sacrificing the Shapeshifters, returning Belonging from your graveyard to the battlefield.
7. Repeat from step 2.

This clever loop turns the steady rise of the swarm into an absolute frenzy by using Intruder Alarm as the engine that untaps your board every time a permanent enters. When you cast Belonging, its shapeshifter tokens flood the battlefield and trigger the Alarm, keeping your utility creatures primed for action. Goblin Bombardment provides a handy outlet to clear away old pieces while dealing infinite damage, allowing Rat King, Verminister to step in and sacrifice those very rats to resurrect Belonging from the graveyard over and over again.