OK, so there's a couple of things i've been wondering about for a while now, it would be really helpful if somebody answered them please

Q1. In battle square when you've bought the omnislash and w summon and you get to fight the 'special' monsters, how much HP does the last guy have? Because (although my people aren't THAT strong) he survived a KoR + Bahamut ZERO + 3xPhoenix (it was all i had left) and then he killed me, i couldn't use anything else because at this point my weapon was broken and most of my materia as well, also, i had no 'item' command and my HP and MP were halved While we're on the battle square topic, is that 'championship belt' worth buying? what does it do?

Q2. When you are able to win good materia from the chocobo square (according to this site), where do you actually win them from? betting or riding? im guessing betting gets the better ones because ive never seen any materia in racing and im up to S Rank with at least 4 chocobos, so i've been there a while (one includes my Goldie ). Also, is there a sort of 'trick' to getting the right item? because whenever i win i get the worst item there is instead of the good one (ie. materia).

Q3. Where is the w magic materia? i know it's in the northern crater but where abouts? a picture with an explanation of where it is would be VERY helpful.

I think thats about it for now, if i think of any more i will add them after an 'EDIT:' underneath this statement