The club moved to the Professional Arena Soccer League (PASL) in 2010 as "Illinois Piasa" under head coach Jerry Lakin.

[2] In July 2013, the Piasa announced that they would play the 2013–14 PASL season at The Field Sports Complex in Pontoon Beach, Illinois.

[3] Jason Norsic, the team's head coach, announced his resignation on July 22, 2013, citing personal and family obligations..[4] Doug Montroy was named as his replacement.

[needs update] The club's original name comes from the mythical Piasa Bird, a Native American legend from the Alton, Illinois, area just outside St. Louis.

The legend says there is a giant bird that lives in the caves of the Mississippi River bluffs near Alton that kidnaps people, then proceeds to devour them in his lair.