Ok, I swapped out my Modest Gible with a Naive nature one, which means both male and female are Naive nature and both posses flawless attack, sp.attack and speed.
x/31/x/31/x/31 (flawless attack, sp.attack and speed)
x/31/x/31/x/31 + x/31/x/31/x/31 = 253 638 / 3 932 160 = 6.4503479% = 1:16
Right now in the daycare, I have 1 in 16 off-springs with flawless attack, sp.attack and speed.
What are the chances if: -
I give both parents Everstones?
I give both parents different Power Items?
I am aiming for a Naive Gible with x/31/x/31/x/31 (flawless attack, sp.attack and speed) and relying on luck for strong defenses.
Your best bet would be using an everstone + a power bracer/lens since 1-2 everstones has the same 50% chance of passing down a nature and not having one only leaves you with about 4% chance of getting the right nature... Also, not using the power item for speed is the best idea since "Alert to sounds " is the safest caracteristic for getting multiple max ivs, and this way, withouth any iv battles you'll have good chances of having a pokemon with good nature and flawless 2 ivs, so getting the other max iv + other good ivs shouldnt be hard.
Hope that helps.
I also had a question but I forgot it >.> I'll edit if I remember what it was about.
P.S. Thank you Osostewie for the reminder about the event.