I went to the lab, both of the setups at the beginning are full combo punishable by a lot of characters, they just need to tech roll and wake up. You cant really option select it so I dont know if its worth doing at all. The EX looks pretty good but it may be a gimmick. Its really easy to see when you're launching the ex rocket, so they can just stay in the ground and make the rocket crash. I think this may work against randoms but anyone with half a brain will probably adapt quickly, and you wasted 12% damage and a bar for nothing.