Ah makes sense, I didn't know I could exit and then rejoin and change up my pokemon! I didn't even know that the taking a break option didn't just make you quit lol, thankyou!
Seems like this will be a whole night's worth of planning at least if I want to do this right eh... No idea how to get all the perfect IV's for pokemon but I'm sure i can google it.
Do you usually find your pokemon in the wild for perfect IV's or is it easier to hatch them? How long does it usually take you to make a team of good IV/EV pokemon?
I'm pretty sure before(Prior to Gen 6), if you left you lost your streak, so it definitely is nice to be able to come in and out without having to go for a full 50 streak. Pretty sure they also didn't give you BP between battles so that's nice too.
You'll want to hatch them regardless. When it comes to wild Pokemon, the only way to influence IVs would be for the Pokemon to be in the Undiscovered Egg Group(In particular the Legendaries, Mythical, and whatever you want to call the Tapus/UBs/Type: Null and Silvally) as that guarantees they'll have at least 3 perfect IVs. For other wild Pokemon, the only way to influence IVs is from SOS Battles, where you'll need to knock out 30+ Pokemon for them to have 4 guaranteed perfect IVs. Even then, you have no control what perfect IVs a stat gets, which is where breeding comes in.
When breeding without a Destiny Knot, the pair of Pokemon will pass down 3 IVs between them to the offspring, if you have one hold a Destiny Knot then it's 5 IVs. At this point you can only keep getting eggs and hoping the IVs you want are passed down to the right stat. There are also Power Items that can be held by a Pokemon and guarantees an IV to be passed down from that Pokemon, the IV it passes down is the stat that relates to it(So Power Anklet gives the Speed IV, Power Band gives the Special Defense IV, etc...).
I personally just Wonder Trade/go on GTS, and hope to get an already decent IV Pokemon and take it from there. Sometimes, it takes an hour to end up with the perfect IVs, sometimes more than a day. An easier way to increase the chances would be to keep switching your pairs around every time a Pokemon with more perfect IVs comes from an egg. I usually put my Pokemon in Pelago to EV train them. You can basically max out a stat while your are sleeping if you use the beans(Takes about 8 hours in that case appose to 16), I usually wait when I have a decent amount ready for it too to just do a bunch in one go.
To make it more simple:
Step 1-Wonder Trade/Go on GTS and wait until you get a Pokemon with some perfect IVs. Or SOS Battle for it.
Step 2-Get a Ditto from SOS Battle. Beat 30 Pokemon in that battle for the new Ditto to have 4 perfect IVs. It might be a good idea to get another one too to make up for any missing IVs.
Step 3-Save up BPs for Destiny Knot(Don't remember how much it cost, but if you did either of the online competitions you'll have enough). Also might as well get Oval Charm(Beat the Gamefreak guy in Heahea City) as it increases odds for an egg to appear.
Step 4-Breed the Pokemon with some perfect IVs with the Ditto that has 4 perfect IVs. Make sure one holds Destiny Knot(Doesn't matter which), and if either has a Nature you want have it hold Everstone as it passes that Nature down.
Step 5-If you haven't done so already, hatch 20 eggs so you can see IVs by talking to the IV judge at Battle Tree
Step 6-Keep hatching until you are satisfy with the IVs.
Again it might be wise to switch up your pairs when a Pokemon with better IVs comes. For example:
Rowlet has perfect IVs in Attack and Special Attack. Ditto has perfect IVs in Attack, HP, Defense, and Speed. If one of the Rowlet offspring has perfect IVs in Attack, Special Attack, and any other stat, replace the first one with the new one. Continue to do so every time more perfect IVs come. The same applies to Ditto, just make sure your two Pokemon are different Genders(Genderless Pokemon will always need Ditto though). Remember to move the Destiny Knot and any other items to the new Pokemon.
You can also look through these links for more in-depth details if need be:
http://www.serebii.net/games/breed.shtml
http://www.serebii.net/games/evs.shtml
http://www.serebii.net/games/ivs.shtml