Artifact Creature That Can Be Cast Using ({C} magic symbol) ({C} magic symbol)
Prerequisites
Artifact Creature That Can Be Cast Using ({C} magic symbol) ({C} magic symbol) in your graveyard.
All other permanents on the battlefield.
Osteomancer Adept does not have summoning sickness.
You control at least one Food.
You have enough mana to cast the creature card in your graveyard.
Steps
Activate Osteomancer Adept by tapping it, allowing you to cast creature spells from your graveyard this turn by foraging in addition to the spell's other costs.
Cast the artifact creature card that can be cast using ({C} magic symbol) ({C} magic symbol) from your graveyard by paying its mana cost and sacrificing a Food.
When the creature enters the battlefield, Samwise triggers, creating a Food token.
Activate Krark-Clan Ironworks by sacrificing the artifact creature, adding ({C} magic symbol) ({C} magic symbol) .
Repeat from step 2.
If the creature can be cast using ({C} magic symbol) or less, this combo nets infinite colorless mana.