Cast Marketback Walker by paying 1, causing it to enter the battlefield with a +1/+1 counter on it.
Activate Together Forever by paying 1, targeting Marketback Walker.
Activate Ashnod's Altar by sacrificing Marketback Walker, adding CC.
When Marketback Walker dies, Together Forever triggers, returning Marketback Walker from your graveyard to your hand.
Repeat.
This loop turns Marketback Walker into a self-sustaining sacrifice engine, where Ashnod's Altar provides the colorless mana to repeatedly pay Together Forever's activation cost and recast the artifact creature. Because Honest Rutstein passively reduces creature spell costs by {1}, casting Marketback Walker becomes even cheaper, letting you cycle the walker endlessly. Every iteration triggers Marketback Walker's death ability to draw cards based on its counters, converting a modest mana investment into an unstoppable deluge of card draw, death triggers, and storm count.