I really do hope the VM you sent is intended as a joke...
Leaving your selection of Fail Dragon (Rayquaza) aside (I still don't get why you suggest it when you hate it so much....), Chesto-Rest Blaziken is really not effective, Blaziken is so fragile that even neutral hits can bring it to death/ the verge of death. Furthermore, as you probably know, I personally dislike using Blaziken, where from my experience using it I feel that there are always better members such as Ho-Oh to replace it. Also, KFC is not going to work on a rain team...... why not replace it with a rain abuser like Omastar instead?
Regarding Giratina-A, well that might work, but I'd rather use Giratina-O instead, 100 Base Special Attack is really too weak in Ubers in my opinion. Besides, Scarfed Giratina-A is really gimmicky in my opinion.
I think scarfed Kyogre is fine. Timid Scarf Ogre can work as a great revenge killer at times.
Anyway, lets not discuss this over VMing..... I'd much rather prefer if you PM instead or even better, find me on PS! to discuss....