Xavier Sal, Infested Captain + Intruder Alarm + Awaken the Woods + Vinelasher Kudzu

Xavier Sal, Infested Captain

Intruder Alarm

Awaken the Woods

Vinelasher Kudzu

How it works

1. Activate Xavier Sal by tapping it and removing a counter from a permanent you control, creating a token copy of the Forest Dryad token.
2. When the Forest Dryad enters the battlefield, Intruder Alarm and Vinelasher Kudzu trigger.
3. Resolve the Vinelasher Kudzu trigger, putting a counter on a creature you control.
4. Resolve the Intruder Alarm trigger, untapping all creatures.
5. Repeat.

This looping engine turns a simple spark of mana into an overflowing garden by exploiting the untap trigger of Intruder Alarm whenever a new creature joins the battlefield. You kick things off using Awaken the Woods to provide the initial bodies, letting Xavier Sal, Infested Captain consume a counter to populate a fresh Forest Dryad token. Every time that token enters, Intruder Alarm untaps Xavier Sal so the captain can immediately tap and repeat the process, while Vinelasher Kudzu conveniently grows larger and supplies a fresh +1/+1 counter to fuel subsequent iterations.