I'm a huge fan of Wailord in general, but I think you might need a bit more support to make him stick once he gets online.
2-2-2 Golduck Break line could help. That way you could play Max Potion to keep healing it up.
Along with that, you might want to try a 1-1 or 2-2 Octillery line to keep...
I'm not sure that you need Hypno in this at all really. If you bump up to 3 Malamar EXs you should be fine. I also don't think you need the Yveltal EXs in there as Malamar is kind of the same thing.
I run something similar to this with Zoroark(BreakThrough) to make sure to get through Regice...
I understand this is pretty much going to be the same thing as the Entei/Charizard deck, but I think Emboar is a better replacement. He can use his best attack every turn, with the help of Blacksmith, unlike Charizard and it's sad Wing Attack.
Pokemon (10)
3 Emboar EX (Breakpoint)
4 Entei (AOR...