You send out a blast of thunderous force. Each creature in a20-foot cone must make a Strength saving throw. A creaturetakes 2d6 thunder damage and is pushed back 15 feet in aline away from the caster on a failed save. On a successfulsave the targets only take half damage and are not moved.
At Higher Levels:
When you cast this spell using a 2nd levelspell slot or higher, the damage increases by 1d6 for each slotlevel above 1st.
School of the Griffin bonus:
The damage when castingAard increases by an additional 1d6. Large or smallercreatures that fail the saving throw are also knocked prone.