I Using Meloetta Pokemon with Serene Grace and hold King Rock ( 10.2 = 20%) and I use the following move :
For Example :
Shadaw Ball -> give demage amount 80 and chance to reduce SP. Deff by : 20% ( 20.2 = 40%) with serene grace
And the question is :
1.what percentage of possibilities does King Rock cause a flinch? 40% reduce SP.Deff & 20% chance to cause flinch?
2. if Shadaw Ball is an active side effect, is it possible that the effects of King Rock are also active for making Flinch? and if Yes
3.what percentage of possibilities does King Rock cause a flinch?