Again, this could just be a bug as the new spells and abilities don't seem to be fully implemented on the test server yet, but posting this anyway.

The Thunder Breath and Wind Breath spells are not affected by elemental affinity/elemental attack bonuses (e.g. those from atmas), which is different from all other BLU breath spells which are affected by this. This may or may not be a bug, but it is inconsistent with the behavior of all similar spells learned by players before this.