well theres always exceptions...
blacksmith with adrenaline rush can get with 1doppel, adrenaline rush+a berserk pot, and little agility
with 99agility+high bonuses(valk helm
) you could probly use 1doppel and get 190
for ur last question, im not sure what u mean.
doppels stack, so 2 is usually enough.
to counter slow grace(dancer/gypsy skill) you'd need 3-4 doppels
and it depends on ur weapon(maces are reaaaaaaaaally slow on sins)
