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Author How BAB Works
Countess Terra
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Profile: Countess TerraNWN
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Joined: 03 Jul 2003
From: My money bin swimming of course.
Posted: Saturday, 22 January 2005 08:41PM
I've seen a lot of people asking about how Base Attack Bonus and number of attacks are calculated and I think that, rather than reiterate it in every single thread, it may be smarter to just to have one big thread to answer all the questions... so here goes.

Before Level 20

There are three Base Attack Bonus Progressions: 1:1, 3:4, and 1:2.

The first Base Attack Bonus Progression (1:1) is used by the Fighter type characters.


  1. Barbarian
  2. Fighter
  3. Paladin
  4. Ranger
  5. Arcane Archer
  6. Black Guard
  7. Champion of Torm
  8. Dwarven Defender
  9. Weapon Master


For every level, you gain 1 to your Base Attack Bonus.


  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6/1 <-- 2 Attacks per round
  7. 7/2
  8. 8/3
  9. 9/4
  10. 10/5
  11. 11/6/1 <-- 3 Attacks per round
  12. 12/7/2
  13. 13/8/3
  14. 14/9/4
  15. 15/10/5
  16. 16/11/6/1 <-- 4 Attacks per round
  17. 17/12/7/2
  18. 18/13/8/3
  19. 19/14/9/4
  20. 20/15/10/5



The next Base Attack Progression (3:4) is used with the non-Mage, but non-Fighter type characters.


  1. Bard
  2. Cleric
  3. Druid
  4. Monk
  5. Rogue
  6. Assassin
  7. Harper Scout
  8. Red Dragon Disciple
  9. Shifter
  10. Shadow Dancer


For every 4 levels, you gain 3 to your Base Attack Bonus.


  1. 0 <-- No gain here
  2. 1
  3. 2
  4. 3
  5. 3 <-- No gain here
  6. 4
  7. 5
  8. 6/1 <-- 2 Attacks per round
  9. 6/1 <-- No gain here
  10. 7/2
  11. 8/3
  12. 9/4
  13. 9/4 <-- No gain here
  14. 10/5
  15. 11/6/1 <-- 3 Attacks per round
  16. 12/7/2
  17. 12/7/2 <-- No gain here
  18. 13/8/3
  19. 14/9/4
  20. 15/10/5



The next Base Attack Progression (1:2) is used with the Mage-type characters.


  1. Wizard
  2. Sorceress
  3. Pale Master



For every 2 levels, you gain 1 to your Base Attack Bonus.


  1. 0 <-- No gain here
  2. 1
  3. 1 <-- No gain here
  4. 2
  5. 2 <-- No gain here
  6. 3
  7. 3 <-- No gain here
  8. 4
  9. 4 <-- No gain here
  10. 5
  11. 5 <-- No gain here
  12. 6/1 <-- 2 Attacks per round
  13. 6/1 <-- No gain here
  14. 7/2
  15. 7/2 <-- No gain here
  16. 8/3
  17. 8/3 <-- No gain here
  18. 9/4
  19. 9/4 <-- No gain here
  20. 10/5



Now, if you have a multiclass character...

say for example: Ranger 6 and Rogue 14

Just look up the Base Attack Bonus of the one with the lowest progression, in this case, Rogue and find its Base Attack Bonus (10/5). Now find that same Base Attack Bonus (10/5) on the next progression up (Fighter BAB) and add the 6 Ranger levels. This gives you 16/11/6/1 for the Base Attack Bonus.

Alternatively, you can look up how much BAB each class loses. The 6 levels of Ranger have no losses. The 14 levels of Rogue however, have 4 losses. Add up their total levels (20 in this case) and subtract 4 from the Fighter BAB Progression and you get 16/11/6/1 as well.



After Level 20

After level 20, your Base Attack Bonus acts like it were that of a Mage-type and you are unable to gain new attacks regardless of your Base Attack Bonus. This means that if you want 4 attacks per round, you have to get them before level 21. This causes some people to put off Mage classes until post epic if they can to maximize their number of attacks.

Here's what the progression looks like for all classes during levels 21 through 40.

21. +1 -> 1
22. +0 -> 1 <-- No gain here
23. +1 -> 2
24. +0 -> 2 <-- No gain here
25. +1 -> 3
26. +0 -> 3 <-- No gain here
27. +1 -> 4
28. +0 -> 4 <-- No gain here
29. +1 -> 5
30. +0 -> 5 <-- No gain here
31. +1 -> 6
32. +0 -> 6 <-- No gain here
33. +1 -> 7
34. +0 -> 7 <-- No gain here
35. +1 -> 8
36. +0 -> 8 <-- No gain here
37. +1 -> 9
38. +0 -> 9 <-- No gain here
39. +1 -> 10
40. +0 -> 10 <-- No gain here


If you wish to calculate your Base Attack Bonus here, all you have to do is look up your level and add the right number to what your Base Attack Bonus was at level 20.


I hope this helps all the new people that are confused about how Base Attack Bonuses work.




~Terra~
_________________
When I am working on a problem I never think about beauty.
I only think about how to solve the problem.
But when I have finished, if the solution is not beautiful, I know it is wrong.

Edited By Torias on 01/24/05 08:28

  Profile: Countess Terra   Send Message To: Countess Terra
Cinnabar Din
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Profile: Cinnabar DinNWN
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Joined: 15 Mar 2004
From: Some backwater in the Orion Arm
Posted: Saturday, 22 January 2005 09:30PM
Quote: Posted 01/22/05 20:41:12 (GMT) by Countess Terra

Now, if you have a multiclass character...

say for example: Ranger 6 and Rogue 14

Just look up the Base Attack Bonus of the one with the lowest progression, in this case, Rogue and find its Base Attack Bonus (15/5). Now find that same Base Attack Bonus (15/5) on the next progression up (Fighter BAB) and add the 6 Ranger levels. This gives you 16/11/6/1 for the Base Attack Bonus.

My dear, I hope you can still edit, as you may end up confusing the noobs.

A Rogue of level 14 has a BAB of +10/+5...
_________________
It's rogue, dammit, ROGUE!!!
  Profile: Cinnabar Din   Send Message To: Cinnabar Din
Sir Nahme
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Profile: Sir NahmeNWN
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Joined: 30 Aug 2002
Posted: Saturday, 22 January 2005 09:33PM
another victory in the battle against all thats holy VS the ruling class
_________________
NWScript:
void main()
{
object oPoster = GetCurrentTopicCreator();
if oPoster == n00b
  {
   Speakstring("not again!");
  }
}
  Profile: Sir Nahme   Send Message To: Sir Nahme
Countess Terra
Game Owner
Profile: Countess TerraNWN
NWN: SoU
NWN: HotU


Joined: 03 Jul 2003
From: My money bin swimming of course.
Posted: Saturday, 22 January 2005 10:17PM
I missed that...

I was too busy trying to figure out why the bulleted lists were giving me list incompletes.

I wish that little mis-typing could be fixed... it's such a good list of everything too...

~Terra~
_________________
When I am working on a problem I never think about beauty.
I only think about how to solve the problem.
But when I have finished, if the solution is not beautiful, I know it is wrong.
  Profile: Countess Terra   Send Message To: Countess Terra
Torias
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Profile: ToriasNWN
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Joined: 18 Oct 2001
From: Sydney, Australia
Posted: Sunday, 23 January 2005 08:54AM
Quote: Posted 01/22/05 22:17:36 (GMT) by Countess Terra
I wish that little mis-typing could be fixed... it's such a good list of everything too...

~Terra~

sometimes, wishes come true.

my suggested way of working out bab for multiclass characters is just to work out the bab for each class individually, and add it up.

if you know the "-5 per extra attack" rule, then you can figure out the number of extra attacks pretty easily.
  Profile: Torias   Send Message To: Torias
Countess Terra
Game Owner
Profile: Countess TerraNWN
NWN: SoU
NWN: HotU


Joined: 03 Jul 2003
From: My money bin swimming of course.
Posted: Monday, 24 January 2005 12:59AM
Yay!

~Terra~
_________________
In our world, every storm has an end. Every night, brings a new morning.
What's important is to trust those you love, and never give up. We must
all keep hope alive...
  Profile: Countess Terra   Send Message To: Countess Terra
Cinnabar Din
Moderator
Game Owner
Profile: Cinnabar DinNWN
NWN: SoU
NWN: HotU
SW: KotOR PC
Jade Empire:SE
NWN 2
NWN 2: MotB
NWN 2: SoZ
Mass Effect PC
Sonic DS


Joined: 15 Mar 2004
From: Some backwater in the Orion Arm
Posted: Monday, 24 January 2005 01:04AM
Quote: Posted 01/23/05 08:54:01 (GMT) by Torias

sometimes, wishes come true.

But, alas, in real life - just as in D&D - wishes generally don't turn out exactly as we'd hoped :

Quote: Posted 01/22/05 20:41:12 (GMT) by Countess Terra

Now, if you have a multiclass character...

say for example: Ranger 6 and Rogue 14

Just look up the Base Attack Bonus of the one with the lowest progression, in this case, Rogue and find its Base Attack Bonus (10/5). Now find that same Base Attack Bonus (15/5) on the next progression up (Fighter BAB) and add the 6 Ranger levels. This gives you 16/11/6/1 for the Base Attack Bonus.

_________________
It's rogue, dammit, ROGUE!!!
  Profile: Cinnabar Din   Send Message To: Cinnabar Din
Torias
Moderator
Game Owner
Profile: ToriasNWN
NWN: SoU
NWN: HotU
SW: KotOR PC
Jade Empire
Jade Empire:SE
NWN 2
NWN 2: MotB
NWN 2: SoZ
Mass Effect PC


Joined: 18 Oct 2001
From: Sydney, Australia
Posted: Monday, 24 January 2005 08:29AM
.... if at first you don't succeed, try again?
  Profile: Torias   Send Message To: Torias
Countess Terra
Game Owner
Profile: Countess TerraNWN
NWN: SoU
NWN: HotU


Joined: 03 Jul 2003
From: My money bin swimming of course.
Posted: Monday, 24 January 2005 02:45PM
Quote: Posted 01/24/05 08:29:10 (GMT) by Torias

.... if at first you don't succeed, try again?


Thanks again.

Cin don't say it...

~Terra~
_________________
When I am working on a problem I never think about beauty.
I only think about how to solve the problem.
But when I have finished, if the solution is not beautiful, I know it is wrong.
  Profile: Countess Terra   Send Message To: Countess Terra


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