I like the Ash Greninja, invest into sweeping potential and you’ll be good. However, don’t run double edge or egg bomb on blissey, her physical attack is trash. You’d be better off with toxic and refresh. If you wanted to, you could even swap blissey for Clefable, with cosmic power, toxic, recover, and an attacking move. Ability has to be the one that negates damage from all but attacks. Delphox could be set up so much better, you have a useless ability because you already have an item, you can’t get the benefit of sunny day without swapping out and back in, and you won’t be able to do anything after using future sight because one use will lock you on it, not attacking until it hits two turns later. Use Psychic instead of future sight, assault vest and blaze ability, or fling and magician ability, along side an iron ball or flame/toxic orb item. I suggest using flamethrower, shadow ball, and psychic, or fire spin. If you’re running the iron ball/orb with Magician combo, swap Psychic for fling, using iron ball for damage, orbs for status. Lucario is interesting, but I really suggest going dark pulse instead of close combat for coverage, but a calm mind or laser focus would work there, too. As for dragonite, he’s good, with the fire punch, too, but overall, I feel Salamance would be better. I would mega evolve him, not Lucario, as the trade off is better. You have all those moves, better stats, and an ability that gives normal moves stab and turns them to flying. Running Lucario with choice specs, scarf, or even assault vest or lifeorb could work as well, and replace fire punch for return, which will, using aerialate, will have a base power of 153 at max friendship, which will rival outrage’s 180 after stab, with no move lock or confusion. Mega Salamance alone is a monster, but finding a baton pass into Salamance would be an excellent idea, too. I hope this helped, because although I am by no ways great competitively, I do know a thing or two. Good luck in the 1v1!