Enduring Renewal + Kobolds of Kher Keep + Intruder Alarm + Gríma Wormtongue

Enduring Renewal

Kobolds of Kher Keep

Intruder Alarm

Gríma Wormtongue

How it works

1. Activate Grima Wormtongue by tapping it and sacrificing Kobolds of Kher Keep.
2. When Kobolds of Kher Keep dies, Enduring Renewal triggers, returning Kobolds of Kher Keep from your graveyard to your hand.
3. Resolve the Grima Wormtongue ability, causing target player to lose 1 life.
4. Cast Kobolds of Kher Keep by paying 0.
5. Repeat.

This loop turns free creature casting into a relentless engine of destruction, fueled entirely by the zero-mana cost of Kobolds of Kher Keep. As you cast and sacrifice the Kobolds over and over, Enduring Renewal swoops in to intercept them from the graveyard, looping them right back to your hand so you never run out of fodder for Gríma Wormtongue's life-draining sacrifice ability. Meanwhile, Intruder Alarm stands guard to untap Gríma Wormtongue—and any other creatures you control—every single time the Kobolds enter the battlefield, ensuring your tap ability is instantly refreshed for the next iteration.