Infinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite lifegain triggersInfinite storm countInfinite lifelossInfinite +1/+1 counters on creatures you control
How it works
Activate Myr Scrapling by sacrificing it.
When Myr Scrapling dies, Mortuary and Vengeful Bloodwitch trigger.
Resolve the Mortuary trigger, putting Myr Scrapling from your graveyard onto the top of your library.
Resolve the Vengeful Bloodwitch trigger, causing you to gain 1 life and target opponent to lose 1 life.
Resolve the Myr Scrapling ability.
Cast Myr Scrapling from the top of your library by paying 1 life.
Repeat.
This engine turns a humble automaton into an endless cycle of life and death, fueled entirely by life manipulation rather than mana. By using Bolas's Citadel, you can cast Myr Scrapling directly from the top of your library for a mere 1 life instead of its mana cost. The moment you sacrifice Myr Scrapling to its own ability, Mortuary immediately intercepts it to place it right back on top of your library, while Vengeful Bloodwitch converts every single iteration of that loop into a net gain of life for you and inevitable life loss for your opponents.