Which items work well / don't work for Boss battle's?

[WhYdOyOuThInKtHaThApPeNeD]

Does Cloak of Shadows function on the Boss fights (Driller, Spider, Frog, etc.)?
My bet is that it doesn't, too good to be true. (meaning it does nothing, not applicable?)

Does anyone have a complete list of what items function and don't function on the boss battles? If not I encourage people to post their experience with what items worked well and which did nothing. Or if everything works then which items you found to be the most useful for fighting all boss's in general or specific boss battles.

Obviously items that boost units attack / defense function. I assume items that boost resistance types also function.

Also, is there a guide that lists all the different types of attack and what type damage each Boss does?