Enduring Renewal + Phyrexian Walker + Intruder Alarm + Gríma Wormtongue

Enduring Renewal

Phyrexian Walker

Intruder Alarm

Gríma Wormtongue

How it works

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

This brilliant loop uses Enduring Renewal's static graveyard-return ability to completely bypass the traditional resource cost of recurring your threats. By leveraging Phyrexian Walker's free zero-mana casting cost, you can repeatedly feed it to Gríma Wormtongue's activated ability to drain your opponents out of the game while keeping your hand fully stocked. Meanwhile, Intruder Alarm sits on the battlefield ready to untap your entire board whenever the Walker enters, making this artifact-creature loop exceptionally potent for generating infinite storm count and sacrifice triggers.