When Xie Wen made that suggestion, he actually had not thought that far ahead. He had only wanted to stall a little longer so the cats would have more time to carry out the plan afterward...
And, along the way, he could directly "win" Viola away from Doflamingo's side.
He had even thought that if Doflamingo refused, he could drop the original rules of the Davy Back Fight, or compromise by letting the other cats compete, or agree to let Doflamingo field a few more people...
He was going to kill Heavenly Yaksha in the end anyway, so winning or losing this contest did not really matter.
But Xie Wen had overlooked the fact that Kuma had not become a Shichibukai as he had in the original story. In fact, since his only reason for setting out to sea was to travel around with Bonney, his bounty was still the sixty million set after he beat up a noble in the South Blue, and it had never changed since.
Instead, for some unknown reason, little Bonney's bounty had gradually risen to over twenty million.
So, from Doflamingo's perspective, there would naturally be no surprises in the outcome between him and Luo... just as whoever he sent out would have no chance of beating Xie Wen.
One win and one loss would even things out.
As for Kuma, who had a bounty of only sixty million, the fact that Luo had invited him to deal with Doflamingo might mean he was a little stronger than that suggested, but at the absolute most, he was probably only on the level of a Supernova. Any one of Doflamingo's four top officers could easily handle him.
Trading one of his own subordinates for two of Xie Wen's cats was a profitable deal no matter