Mortuary + Krark-Clan Grunt + Shield Sphere + Gwenom, Remorseless

Mortuary

Krark-Clan Grunt

Shield Sphere

Gwenom, Remorseless

How it works

1. Activate Krark-Clan Grunt by sacrificing Shield Sphere
2. When Shield Sphere dies, Mortuary triggers, putting Shield Sphere from your graveyard onto the top of your library.
3. Resolve the Krark-Clan Grunt ability.
4. Cast Shield Sphere from the top of your library by paying 0 life.
5. Repeat.

This clever loop relies on Mortuary to intercept your sacrificed artifacts, quietly recycling them straight back to the top of your library whenever they perish. The engine is fueled by Krark-Clan Grunt devouring Shield Sphere for free, turning the zero-cost artifact into an endless supply of sacrifices that perpetually pump the Grunt's power. Meanwhile, Gwenom, Remorseless provides the critical top-deck vantage point, allowing you to bypass mana costs entirely and recast the recurring Shield Sphere straight from the library while only paying its zero mana value in life.