Blind bounty hunter might be worth considering. You need to tweak the game slightly to make doing it worthwhile. There are ways to become permanently blind in BG2, but they are hard to find and get accidentally dispelled by Heal which sucks. Best way to do it is with a mod item, my character has a blindfold.

The reason you want this character to be blind is that blind characters can lay traps during combat that immediately trigger and hit every enemy. The special traps maze out every creature within fireball distance with no save. This gives you usually 5-7 rounds iirc to "pre buff" and summon creatures during a fight and set more traps including more maze traps if you want. They can also drop high level traps but unfortunately they don't multi trigger like the normal and maze traps, which also do solid burst damage.

I also made a better offhand weapon for my cleric. Having a pure cleric is nice because they get lots of animate dead.

Use wand of lightning cheese at every oppurtunity as well. 6 well placed incendiary clouds can do wonders in a wide variety of encounters.

////////////////////////////////////////////////
//Item Mod2
////////////////////////////////////////////////
@1=~Club~
@2=~Bambolpucky~

@3=~Most clubs are stout, hardwood sticks, narrow at the grip and wider at the end. This simple weapon has been used since people first began using tools. Anyone can find a good, stout piece of wood and swing it; hence the club's widespread use. This particular club has been magically enhanced.

STATISTICS:

THAC0: +3
Damage: 1d6+3 (crushing)
Speed Factor: 1
Proficiency Type:Club
Type: One-handed
Requires:
 5 Strength

Weight: 1
~

@4=~This sentient Club is said to be the vessel of Bambolpucky, an ancient Fae martial arts teacher and spiritualist.  The name Bambolpucky came from a young student's mispronunciation of Bambolpucky's true name, which delighted the jovial fae.
STATISTICS:

Combat Abilities

– 1 extra attack per round
– Armor Class: +2

THAC0: +2
Damage: 1d6+2 (crushing)
Speed Factor: 3
Proficiency Type: Club
Type: One-handed
Requires:
 5 Strength

Weight: 2~

@5=~Blindfold~
@6=~Sion's Blindfold~
@7=~Blindfolds cover your eyes.~
@8=~Sion's Blindfold allows her to achieve perfect focus.  This allows her to lay traps in combat.
STATISTICS:

Equipped abilities:
– Protects against critical hits
– Blindness

Weight: 2~