Mike flinched lightly at that. "The thing is, that's impossible to fuse all three of them together. The DNA splicer can only fuse one of them with Kyurim as the Zekrom and Reshrim were forced apart when the two brothers argued over what was valued more. Kyurim is but the shell of the original dragon while Zekrom followed the Brother who valued Ideals while his sister Reshrim followed the brother who valued Truth. Besides, can you imaging how immensely powerful and uncontrollable a perfect Kyurim would be, it would have a Quadruple typing of Fire, Electric, Ice and Dragon plus it would too powerful to even be contained in a pokeball or even by technology" Mike explained to her