Not true. I was running solely defender through this, ruining peoples day. Full discipline build. 3 on intellect and 2 on melee. Armermentarium. Helmet for increased super on grenade kill All weapons with either grenadier or army of one. Start match. Throw grenade, throw another grenade, wait exactly 1 second, throw another grenade, wait exactly 1 second throw another grenade. You get the point. Should you spot someone with a super Pop bubble with armor of light. If they come at the bubble drop grenade on the ground and step back out of the bubble, walk back in and punch the excrement out of them. Well done you now have a force barrier. If they stay where they are with a GG step back and throw the grenade over your bubble using your bubble as defense. Enjoy the suppression you reigned on your foes. Honestly it's great fun and like above poster put there is always a counter. I really don't think a team of GGs are invincible or would dominate at all but I'm very open to be proven wrong in Iron Banner Mayhem Clash! I say we give it a chance.