Enduring Renewal + Barrage Ogre + Intruder Alarm + Shield Sphere

Enduring Renewal

Barrage Ogre

Intruder Alarm

Shield Sphere

How it works

1. Activate Barrage Ogre by tapping it and sacrificing Shield Sphere.
2. When Shield Sphere dies, Enduring Renewal triggers, returning Shield Sphere from your graveyard to your hand.
3. Resolve the Barrage Orge ability, dealing 2 damage to any target.
4. Cast Shield Sphere by paying 0.
5. Repeat.

This looping mechanism turns zero-mana artifacts into a relentless artillery strike, anchored entirely by Enduring Renewal keeping a steady stream of ammunition flowing straight back to your hand whenever a creature bites the dust. Shield Sphere plays the vital role of that free, recurring sacrifice fodder, costing absolutely nothing to cast and immediately feeding the destruction. Meanwhile, Barrage Ogre converts each sacrifice into direct damage to any target, while Intruder Alarm untaps your entire board whenever that creature re-enters the battlefield—ensuring Barrage Ogre stays fresh and ready to tap for the next iteration of the loop.