Read Danbaru's guide (stickied to the CRMT) to learn about Jump Points in depth.
Basically, jump points are certaina ammounts of EV's where you get 2 stat points for 4 EV's. It's not much, but it sets a nice minimum investment and maximizes the ammount of stat points you get for your EV's.
Attack Form Deoxys is better. 30 extra base defensive points are worth nothing compared to more attacking stats.
No, but there are still things like Sand Storm and Hail to do more indirect damage.
And I don't know Ubers, so I can't deal with your last one.
=]
Basically, jump points are certaina ammounts of EV's where you get 2 stat points for 4 EV's. It's not much, but it sets a nice minimum investment and maximizes the ammount of stat points you get for your EV's.
Attack Form Deoxys is better. 30 extra base defensive points are worth nothing compared to more attacking stats.
No, but there are still things like Sand Storm and Hail to do more indirect damage.
And I don't know Ubers, so I can't deal with your last one.
=]