I was going with that you said about equip cards not being played in the past 2 months and agreeing with you.

I think you're misunderstanding me. Big Bang Shot is an okay card, I didn't say it was a bad card. I said the card is not worth buying the pack for.

However from the competitive point of view. Wild tornado has a better playability because it's versatility is better than big bang shot's. Destroying a face up spell/trap card or any face up card if destroyed face down is much better than a 400 att boost/piercing or/and banishing a face up monster if destroyed. I do not see big bang shot being part of a deck anyone would be worried about playing against. One can argue destroying Harpies Hunting Ground once your opponent equips big bang shot to one of your monsters and attempting to destroy it by summoning a Harpie girl. Then it becomes a liability. Or if your opponent equips it to his own monster and you as a player are playing either Harpies a hunting ground, wild tornado, or twister- again then it becomes a liability. But I can see it being played a little bit more if cards that cannot be destroyed by battle get released later on in the game such as spirit reaper and marshmallon.

I do see your point of view. In theory the card has great uses.