Bony and Michu have already come together to thump Malmo in the Europa League.
He told the South Wales Echo: "It's unbelievable. This was just the second time they've played together - and that's why I am on their side in training!
"Bony has fitted into our style straight away, and the same is true for Jonjo Shelvey, it looks like he's played with us for years. It's such a joy that we've strengthened again after last season."