Kingdom Hearts II here's my problem

Ok, I'm trying to beat all of the Org. XIII data at lv 70 on critical mode. But i thought about Zexion and his book smash attack or w/e, when u get trapped in the book and u have to rip urself out of it. Could i like get my defence up realllly high and survive that, or is there a certain element he uses on that attack, If u know anything, PLEASE REPLY I'D GREATLY APPRECIATE IT!!! :)

 

use a limit when you get into the book world, and get to that book he's in quickly! beat the crap out of it, and use the RC, easy to get out... i think... try looking on youtube for Zexion Data Videos