Displacer Kitten + Intruder Alarm + Viscerid Armor

Displacer Kitten

Intruder Alarm

Viscerid Armor

How it works

1. Activate any number of creatures you control by tapping them, adding at least 2.
2. Cast Viscerid Armor by paying its mana cost, targeting any creature you control except Displacer Kitten.
3. Displacer Kitten triggers, blinking itself.
4. When Displacer Kitten enters the battlefield, Intruder Alarm triggers, untapping all creatures.
5. Resolve the Viscerid Armor spell.
6. Activate Viscerid Armor by paying 1, returning it from the battlefield to your hand.
7. Repeat.

This clever loop transforms Viscerid Armor from a modest aura into an engine of infinite recursion by letting its active return-to-hand ability fund its own casting cost. As you repeatedly cast the aura, Displacer Kitten's blink ability triggers to exile and return itself, which in turn triggers Intruder Alarm to fresh-untap all of your creatures. This allows any mana-producing creatures you control to tap and untap indefinitely to pay for the loop, netting infinite storm count, creature entry triggers, and untaps along the way.