@the people who mentioned Substitute, i.e. SubRoost and Subbing for prediction.
Substitute always has been a good move and using it for stalling or scouting is a good idea so I'm slashing it on the 4th move on the sweeper set but the only thing is that jolteon can do the same but Jolteon can't stall out Hera's moves which I mentioned in the origional SubRoost set just it is more predictable so it desrves a slash over the scouting moves. For the defensive sets i'm not so sure. So let's say after a Double-Down we have Physicaly Defensive Zapdos vs Life Orb Heracross. You sub as he predicts Heat Wave and goes in to Flygon bearing in mind no Rocks. In such a situation like this it would work but if Flygon was brought in it would not work so it takes very heavy prediction which is the only way to make it work but I'm hating myself for being so negative so i'll try to slash it in somewhere.
Also, I'm using my 3ds internet to reply to this so don't expect any work until Friday.
@chanzan Thanks for mentioning that fact, I should put entry hazards are required for the KO on Hera but are we talking just Rocks or the 3 layers of spikes just for clarification.
@FlareBlitz Looking at the set it seems to be pretty well rounded but I was thing an alternative EV set up of max speed timid for Stalling out base 100s for AC aswell something like 248 HP / 8 Def / 252 Spd but if it turns out to be useless I won't bother.