There needs to be a damage nerf of some type. A fully charged bb3 should not be a kill condition, specially considering that on a long enough win streak you're at such a stat disadvantage that it is not a win condition for your own team. The AI cerebella unblockables combo strings is its own issue that'll eventually surface. They can be thrown out with no fear of a counter to it. At the least there should be ones that can be blocked but still deal a lot of chip damage.