This document describes Iron Quest, a community project created by Sarah Bartlett to help Tableau visualization builders practice and improve their skills. Iron Quest involves participants building visualizations based on provided topics and data sources, then receiving feedback on their work to help them advance for Tableau competitions like Iron Viz. The initiative has seen success with over 100 submissions across 5 challenges so far from 88 participants. Testimonials from participants highlight how Iron Quest provides a safe space for practice and feedback to help people strengthen their skills and find confidence to compete in events like Iron Viz.