The first time a blood kineticist selects water with expanded element, she doesn't gain the cold simple blast or the ice composite blast; instead, she gains the blood composite blast, which costs 2 points of burn. A blood blast is a physical blast that deals bludgeoning damage. It is associated with the same infusions as the water blast. If the blood kineticist selects water with expanded element a second time, she gains the cold simple blast and ice composite blast as normal. This ability alters expanded element.