Mortuary + Bolas's Citadel + Myr Scrapling + Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel

Mortuary

Bolas's Citadel

Myr Scrapling

Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel

How it works

1. Activate Myr Scrapling by sacrificing it.
2. When Myr Scrapling dies, Mortuary and Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel trigger.
3. Resolve the Mortuary trigger, putting Myr Scrapling from your graveyard onto the top of your library.
4. Resolve the Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel trigger, causing you to gain 1 life and target opponent to lose 1 life.
5. Resolve the Myr Scrapling ability.
6. Cast Myr Scrapling from the top of your library by paying 1 life.
7. Repeat.

This ingenious loop turns a humble automaton into an engine of absolute doom by pairing Myr Scrapling's zero-cost sacrifice ability with Mortuary, which instantly recycles the little robot back to the top of your library every time it perishes. Thanks to Bolas's Citadel, you can bypass traditional mana costs entirely, continuously casting Myr Scrapling straight off the top of your library for a mere pittance of life rather than its actual mana value. Meanwhile, Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel watches the endless procession of sacrifices, draining your opponents' life totals while padding your own life buffer to ensure you never run out of fuel to keep the machine running.