I need help |:^)

1. Since"Battle skills" is needed for Halberd,how many points should I add in there?
2. What's more better?
- A7CD13C13C13
-All crit
3. Suitable additional gear
4. Suitable special gear
5. A combo that can deal damage decent damage without using tons of my mana.

Gears that I'm using right now
(If they seems to be wrong or bad, I would like you to correct it for me)
Halberd : A7CD11C11C11 (227+6 NS)
-Heavy Knife
-CD7CD12C1313 (55+3 ♢150MP)
-Gothic Hat (12 Crit, ♢150MP)
-Dark fighter bangle (♢Viscum)

Thank you in advance.
(._.)/

 

This is from my side
1. Battle Skill = 35 Points, 5 Point on Whack others Max Lv
2. 7%ATK is better than 7%CD
3. Gothic +15 Crit with Proto Leon still the best option
4. Muscle Talisman III with Bexiz
5. Decent Damage (My personal Combo)
1 MP combo = Flash Stab>Poison Dagger (save)>Bless (Swift)>Spike Dart(Cons)>Impact (Cons)>Strike Stab (Smite)>Assault Attack (Mind's Eye)
3 MP combo = Spike Dart>Strike Stab (Smite)> Assault Attack (Mind's Eye)