<includeonly>=</includeonly>==What's Changed From Yo-kai Watch 1==<includeonly>=</includeonly>
The system has changed considerably from Yo-kai Watch 1, and it's SO MUCH BETTER NOW.*"IV_A", or the "Tribal IV", no longer exists. This is TERRIFIC because the Tribal IV was the hardest part about min-maxing your Yo-kai from the first game.*"IV_B_2", or the IV that rewards you extra points for evolving or fusing your [[Yo-kai]], no longer exists. This is great, because it means if you get a high-tier Yo-kai like [[Signiton]] from the wild or the [[Crank-a-kai]], it will no longer be weaker than one that you evolved yourself.*[[HP]] IVs, and HP EVs granted by HP-increasing Attitudes are now worth DOUBLE HP. This means that HP-increasing Attitudes no longer suck!*IV distribution is different, as detailed below.
<includeonly>=</includeonly>==IV Distribution and Influence==<includeonly>=</includeonly>
Every Yo-kai has 40 IV points randomly spread between their five stats: HP, STR, SPR, DEF, SPD. There is no Yo-kai with 38, 39, 41, 42 etc points, they ALL have exactly 40. The difference between two Yo-kai is where the points went.
I've done a lot of testing and in my experience, a single stat can have as low as 0, and as high as 15 points in it. What do these points mean? They mean at Lv99, the Yo-kai will have that many extra points in that stat.
As I mentioned before, HP IVs are doubled. Here's the IV formula:
HP / 2 + Str + Spr + Def + Spd = 40
For example, a PERFECTLY AVERAGE Yo-kai will have 8 points distributed in every stat - since HP is doubled, it's actually 16. That would look like this:
HP 16 / STR 8 / SPR 8 / DEF 8 / SPD 8
Total points is 40, since you divide HP by 2 for the formula. If this Yo-kai was on your team, at Lv99 he'd have 16 more HP, 8 more STR, 8 more SPR, 8 more DEF, and 8 more SPD than his base stats. Here's another example: my Snartle! His IV spread is:
HP 24 / STR 9 / SPR 3 / DEF 7 / SPD 9
As you can see, compared to "average", he has terrible Spirit, slightly above average STR and SPD, and great HP. It adds up to 40, because 24/2 = 12, + 9 + 3 + 7 + 9 = 40. It will ALWAYS add up to 40.
<includeonly>=</includeonly>==IV Calculation==<includeonly>=</includeonly>
Yo-kai Watch 2 is truly a godsend, they made it SO EASY to calculate. How do you do it? It's easy!
Take a fresh Yo-kai with no training (It doesn't matter if it's level 1 or 20, as long as YOU haven't given it any experience). Open the "Battle" App on your main menu, and go to "Edit Official Team". Look at your new Yo-kai: notice that it is showing his Level 60 stats! Take those stats and go to the IV Calculator that I linked above. Select the Yo-kai's name from the list, and type in his 5 stats, and hit Calculate! It will produce a range of IVs.
Note that sometimes it cannot calculate absolutely precisely - for example, it might say your Strength is "8-9". It will always be accurate within 1 point, at least.
Here's an example you can practice with to make sure you're doing it right! Here are my Kiwinyan's stats at Lv60, untrained:
224 HP / 125 STR / 76 SPR / 98 DEF / 108 SPD
Select "Kiwinyan" and plug those in, and if you did it right, you should get these IV results:
16 / 6 / 11 / 6 / 9
Now you know how to calculate your IVs!
Because the IV_A and IV_B_2 have been abolished, it's MUCH easier to soft-reset your Yo-kai, and arguably even unnecessary. For the most part, you just want to make sure the IVs come out benefitting important stats. You don't want your Cruncha to waste 13 points in Spirit, right?
Incorporating Attitudes is a different story, but it won't be necessary for the simple act of checking freshly caught/Cranked Yo-kai's IVs with this Calculator.
<includeonly>=</includeonly>==Attitudes and EVs==<includeonly>=</includeonly>