I already got full body haki so i don't need allat, cleave and dismantle is good for hype moments and aura, full counter is actually somewhat useful for counterattacking, and tailed beast balls are just fucking nukes. I'll take hype moments and aura

What type of fucking enemies do you have to have to want a Biju Bomb?

Anyways, Full Counter is pretty good but from the description alone I would have to guess that you'd be fucked if you take this. Taking magic Full Counter is pretty useless and physical Full Counter requires you to take the attack in order to dish it back out.

Cleave and Dismantle is very very fuckin useless. Unless you're a murderer but why not go for the Biju Bomb if you want to start killing? You could kill lots more people.

Full Body Armenment Haki is what people have already. I for example. In a serious note, I'm taking it considering it generally increases all phyical stats besides speed + stamina. It'd tank a Cleave which already grants it a +1!