A wave water is sent flying out from you. Each creature in a 15-foot cube originating from you must make a Strength saving throw. Each creature completely enveloped by the area takes 2d8 bludgeoning damage and is pushed 10 feet away from you and knocked prone on a failed save. Or if they are only partially covered they automatically succeed on the save. On a successful save, the creature takes half as much damage and isn't pushed.
In addition, unsecured objects that are completely within the area of effect are automatically pushed 10 feet away from you by the spell's effect, and the spell creates 9 (2d6+2) gallons of fresh water.
At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 and the modifier on how many gallons of water is increased by two for each slot level above 1st.
The information table indicates that the spell requires a Constitution save but the text mentions a Strength save. Also, the table indicates that the damage type is Thunder but the text says that it is bludgeoning damage.
Can you clarify this?