Blaziken
- speed nature, for example: jolly, to outspeed most Pkm
- Hi Jump Kick
- replace Hidden Power Ice because few Pkm have a 4x weakness to Ice, and even then, they're mostly protected by their respective field. I think you're better off with using Bulk Up for early game and then Swords Dance as soon as it will be available
Greninja
- speed nature, for example: timid, hasty or naive
- most water Pkm are bulky, so Grass Knot might be better or you could just slap U-Turn on it. Or, maybe, even a hazard move like Spike to break Focus Sash?
Ma