Survey Mechan + Mortuary + Ashnod's Altar + Desecrated Tomb + Quina, Qu Gourmet

Survey Mechan

Mortuary

Ashnod's Altar

Desecrated Tomb

Quina, Qu Gourmet

How it works

1. Activate Survey Mechan by sacrificing it.
2. When Survey Mechan dies, Mortuary triggers, putting Survey Mechan from your graveyard onto the top of your library.
3. Desecrated Tomb triggers, creating two creature tokens.
4. Resolve the Survey Mechan ability, dealing 3 damage to any target and causing you to draw three cards and gain 3 life.
5. Activate Ashnod's Altar twice by sacrificing the two creature tokens, adding CCCC.
6. Cast Survey Mechan by paying 4.
7. Repeat.

This loop transforms Survey Mechan into a self-sustaining engine by turning its own demise into a recycling machine. Once Survey Mechan is sacrificed, Mortuary immediately intercepts it in the graveyard to stack it right back on top of your library, while Desecrated Tomb spots those cards leaving the graveyard to hatch a pair of flyers. Ashnod's Altar then converts those newly minted tokens into the mana needed to recast Survey Mechan from the top of your library. Meanwhile, Quina, Qu Gourmet quietly doubles your token output whenever Desecrated Tomb triggers, ensuring you always have more than enough sacrifices to fund the loop and unleash infinite damage, card draw, and lifegain.