Celtic Heroes

Is giant swing tht useful? It's slow. But if i were going to change the skills tats, where should I put those stats too? I already have 26/35 in giant swing.
31/35 in shatter
20/35 in frenzy
35/35 double attack
26/35 pummel
27/35 in rupture
26/35 sweeping blow

Another question is, if your lv175 ish how many focus points should I put? Although I have very good ammies, my focus is still in 400s. I only put 15 points there.
And do we need dex?

half maxing skills could go with support only imo, or DoT, but not direct dmg skills

drop all the pts from sweeping blow, each point adds 10 dmg in averege, use them to max pummel, rupture and shatter, and whats left put in frenzy
giant swing isnt any better than those, imo at least, altough the high dmg, each point adds 10-15 dmg in averege, but it still has high dmg, the high dmg is great, but the casting is too slow, u could almost or even out dmg it with melee only, + the cooldown is extremely slow if u wanna spam all skills along with shatter

at 175 you should have no dex and no foc. ammy, bracelets, dl armor will give u enough energy.

at 175 you should have no dex and no foc. ammy, bracelets, dl armor will give u enough energy.

+dl gives great amount of defence, and other gear too if ur using any