I've had him countless times hatch something into a dragon or worse yet mutate something into a dragon with deja vu, there is times when you get lucky and he has rubbish things hatch from the eggs then there's the times when you can't believe how lucky he got managing to get 3 dragons hatch (had it happen before 2 obsidian dragons and can't remember the other) out of 3 eggs, it all depends on luck with destiny with what he can get, also if you get a good attacking mutant he just paradox's it making it useless (and dead).
Also he can use black hole 4 times.