My Idea: A beam that is level 4/level 4 type skill
How it works: So when the beam comes in contact with a level 3 skill they would both cancel each other out, but as they do that the lvl 4 beam would be like this picture.
So what happened was that the blast and beam came into contact, and the beam goes around the beam because the blast could only stop the part where it made contact with not the entire beam.
If anyone remebers this fight the getsuga tenshou went around ulq
https://youtu.be/SE89YBGFKJE?t=5m35sThis is a good example of how it would be (The last one ichigo fired)