Question - Piercing what variation use in each case???

[CmC_HAt]

hello TYM (1rst - excuse my english , i´m Spanish speaker)

i play all the variations of mileena, but i have a doubt, i dont know what var. use in each case

ex. vs shinnok bone sh. i must use piercing or etheral??
vs sub - zero cryo??, etheral o ravenous???

agains who ravenous is truly effective , and his strateggy??

if someone understand me, and can help me , please, i´ll apreciate,

senkiu

 

[Parasurama]

I am curious about this too.... I only really know ravenous and ethereal and they seem good for moSt matchups.