Pseudo RNG Abuse for Eggs in Pokémon X & Y

Yes, it’s actually happening! The credit for it goes to Japanese players who discovered that IVs of the egg are determined before the parents are even deposited in the Day-Care. Sounds pretty crazy, but believe me, it works!

Prerequisites

In order to be 100% sure about what IVs and from which parent are inherited by the egg, you need to have following things:

• A pair of Test Parents from any egg group that both have all different IVs. The best way to find them out is to go to the Battle Institute (Lumiose City, Northern Boulevard) as their level will be set to 50 and the results will be very accurate. If you don’t know the exact EV spreads of your pair, just erase them with a Reset Bag. Note that if you don’t have any 31 IVs among your Test Parents, you have a higher chance of spotting a hex flawless spread as the stat that’s not inherited is random. Important: Inheritance can differ for Pokémon with different gender ratio. It’s recommened to use Test Parents with the same gender ratio as the target. Personally, it happened to me only when I’ve been breeding genderless Pokémon, but there were reports of the shakiness for other Pokémon as well.
• Destiny Knot (2nd floor, Cyllage City Hotel) and Everstone (Geosenge Town, given by a Scientist in leftmost house).
• A Pokémon with either Flame Body or Magma Armor ability and a Pokémon that can use HM02 Fly (Fletchinder and Talonflame are your best bets as they both and Fly and have Flame Body).
• A bunch of Pokémon you want to RNG with at least 2/3 perfect IVs. Make sure that the female (or Male if breeding with Ditto) has the desired Ability. There’s a 60% chance that the offspring will inherit mother’s Ability.
• Access to a decent IV calculator.
• (optional) Hatching O-Power.

The Process: Practice

1. Put your Test Parents in the Day-Care. One of them must hold Destiny Knot.
2. Ride your bike outside the Day-Care until Day-Care Man gets an Egg for you (he’ll be facing down, towards the road).
3. Take and hatch the Egg.
4. Go to the Battle Institute (Lumiose city, Northern Boulevard) and take a test. Don’t worry, you don’t have to save your game.
5. Go to your hatched Pokémon’s Summary and calculate its IVs.
6. Write down which IVs have been inherited and from which parent.
7. For future reference, you might want to write down the stats of the hatched Pokémon to save time when RNGing next time.
8. If you’re satisfied with the inheritance spread you’ve obtained, reset the game and swap the Test Parents with another couple that has perfect IVs matching your inheritance spread (use Everstone to ensure you get the right nature). Hatch the egg and congratulations! You’ve just successfully RNGed a Pokémon in X/Y!
9. If you didn’t get desired spread, reset your game, repeat Step 2 but instead of getting the Egg from the Day-Care Man, reject it and save the game. Repeat Steps 3-7. In case you didn’t get desired Ability with your final parents, you need to repeat the process.

The Process: Example

My Test Parents are a pair of Sunkern:

(M)
Nature:	Bold
Stat	IV
HP	2
Atk	16
Def	30
SAtk	21
SDef	9
Spe	2

(F)
Nature:	Serious
Stat	IV
HP	4
Atk	11
Def	12
SAtk	0
SDef	26
Spe	7

The hatched Sunkern has Hardy Nature and following stats at level 50: 92/43/49/50/48/36. I calculate IVs and get result of:

Nature:	Hardy
Stat	IV
HP	4
Atk	16
Def	30
SAtk	31
SDef	26
Spe	2

I try to match them and instead of exact IVs, I put X for the random non-inherited IV, M for Male’s IV and F for Female’s IV and get: F/M/M/X/F/M I search among all the Pokémon I’d like to breed for a Female with 31 IVs in HP and Special Defense and a Male with 31 IVs in Attack, Defense and Speed. I reset the game and take back my Sunkern couple. I go to the PC and find a 31/x/x/31/31/31 Bold Female Intimidate Mawile and an x/31/31/31/x/31/ Adamant Male Floatzel. Since I want to have an Adamant Mawile, I put my Everstone on Floatzel and Destiny Knot on Mawile. A 31/31/31/31/31/31 Adamant Intimidate Mawile is my goal.

(M)
Nature:	Adamant
Stat	IV
HP	x
Atk	31
Def	31
SAtk	x
SDef	x
Spe	31

(F)
Nature:	Bold
Stat	IV
HP	31
Atk	x
Def	x
SAtk	x
SDef	31
Spe	x

I ride until I get an egg from Day-Care Man, I hatch it, check the Ability and since it’s the desired Intimidate, I go to the Judge. He says that my Mawile’s overall potential is outstanding and its HP as well as its Atk, Def, SpAtk, SpDef and Speed “simply can’t be beat!” which means all its IVs are 31.

Nature:	Adamant
Stat	IV
HP	31
Atk	31
Def	31
SAtk	31
SDef	31
Spe	31

 Useful links

• Metalkid’s IV Calculator for Battle Institute IV check.
• Bulbapedia’s stat Judge article for final egg’s IV check.

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