Ashaun Roach-Valandra finished with 16 points, 11 rebounds and four steals against the Blue Dragons on Monday, February 1. (Photo/MacKenzie Apland) Matt Larson | Big Sioux Media The Dell Rapids St Mary Cardinals used a 16-0 run in the second quarter to fuel a 64-51 win over the Garretson Blue Dragons in Garretson on Monday,…