Mortuary + Weatherlight Compleated + Marketback Walker

Mortuary

Weatherlight Compleated

Marketback Walker

How it works

1. Cast Marketback Walker by paying 0.
2. Marketback Walker enters and dies as a state-based action due to having 0 toughness, triggering Mortuary and Weatherlight Compleated.
3. Resolve the Mortuary trigger, putting Marketback Walker from your graveyard onto the top of your library.
4. Resolve the Weatherlight Compleated trigger, causing you to put a phyresis counter on it and draw a card, thus drawing Omarthis from your library.
5. Repeat.

This ingenious loop relies on casting Marketback Walker for zero mana, causing it to instantly perish as a state-based action and setting off a cascade of triggers. Mortuary catches the falling automaton and neatly tucks it right back onto the top of your library, priming it to be drawn again by the card-drawing ability of Weatherlight Compleated. Meanwhile, every iteration feeds Weatherlight Compleated a fresh phyresis counter to keep the engine fueled and your hand full.