Sculky: A new enchantment book

I was thinking of what could be the unique loot in deep dark? and i came up with a idea, a enchantment sculky

This enchantment book will be only findable in deep dark city's chest 
Like with sharpness, sculky will have 5 levels of enchantment on it
It will make Warden and any other deep dark mob if u'll add take extra damage depending on the level of it
It will be a enchantment for axe, sword and bow
But it will get rarer as the numbers go up, meaning Sculky 1 being the most common and sculky 5 being the rarest.
But wouldnt players just use sharpness and power instead? So, to prevent it u should make it so shapness and power dosent effect Warden or any other deep dark mobs if u'll add 
And u cant have bane of anthropods, smite and sharpness after u enchant it.