You have a way to cause a 2/2 nonwhite creature to enter the battlefield under your control.
Steps
Cause a 2/2 nonwhite creature to enter the battlefield under your control, which enters as a 1/1 creature due to Crovax.
The creature enters the battlefield, triggering Sword of the Meek, returning Sword of the Meek from your graveyard to the battlefield attached to the creature.
Imotekh triggers, holding priority, activate Krark-Clan Ironworks by sacrificing Sword of the Meek, adding ({C} magic symbol) ({C} magic symbol) .
Resolve the Imotekh trigger, creating two 2/2 Necron Warrior artifact creature tokens that enter the battlefield as 1/1 creatures due to Crovax.