I'm hoping this video may change your mind. https://www.youtube.com/watch?v=lS0IbQjjPBQ Bigghandsmcnubbs: [quote]The spike grenade may be my favorite. I don't think people understand how to react to it because it is so rare. Edit: Also, the defender is the only subclass that gains progress towards the next super while the previous super is active. didn't watch the video, but if you did the high impact sniper trick, you can totally chain bubbles.[/quote]