Paradox Brothers use it only in first rounds, but Cerberus Atk is higher than 3k he never used it.
But if he uses it in the first rounds I have enough controller on field for def when he attaks me, or I use soul change so I can not attack
And with pot you can bring it back
They only use it when the only monsters they control are guardian. But the a.i is so dump they wont deliberate summon 3 guardian on top each other, it's just by mere chance they get a board only consist guardian and activate battle mania. The OP doesnt know jack about their a.i merchanic, because it's just people with sad luck like me who got hit by that card more than 1.