Survey Mechan + Mortuary + Ashnod's Altar + Chalk Outline + Parallel Lives

Survey Mechan

Mortuary

Ashnod's Altar

Chalk Outline

Parallel Lives

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. Chalk Outline triggers, creating two creature tokens and two Clue 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 fascinating loop revolves around repeatedly sacrificing and redrawing Survey Mechan, whose massive activation cost is heavily discounted by your domain of lands while Ashnod's Altar provides the colorless mana to recast it. Whenever Survey Mechan dies, Mortuary conveniently tucks it right back onto the top of your library so you can draw and cast it again, while Chalk Outline capitalizes on that graveyard departure. Because Parallel Lives doubles the resulting output of Chalk Outline, every cycle yields an abundance of creature and Clue tokens that fuel Ashnod's Altar for infinite mana and near-infinite value.