As its Hit Dice increase, a creature's attack bonuses and saving throw modifiers might improve. It gains more feats and skills, depending on its type, as shown on Table: Creature Improvement by Type.
Note that if a creature acquires a character class, it improves according to its class, not its type.
Table: Creature Improvement by Type |
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Hit Die |
Attack Bonus |
Good Saving Throws |
Skill Points* |
|
Aberration |
d8 |
HD x3/4 (as cleric) |
Will |
2 + Int mod per HD |
Animal |
d8 |
HD x3/4 (as cleric) |
Fort, Ref (and sometimes Will) |
2 + Int mod per HD |
Construct |
d10 |
HD x3/4 (as cleric) |
- |
2 + Int mod per HD** |
d12 |
HD (as fighter) |
Fort, Ref, Will |
6 + Int mod per HD |
|
d8 |
HD x3/4 (as cleric) |
Ref (Air, Fire), or Fort (Earth, Water) | 2 + Int mod per HD |
|
Fey |
d6 |
HD x1/2 (as wizard) |
Ref, Will |
6 + Int mod per HD |
d8 |
HD x3/4 (as cleric) |
Fort |
2 + Int mod per HD |
|
Humanoid |
d8 |
HD x3/4 (as cleric) |
Varies (any one) |
2 + Int mod per HD |
Magical beast |
d10 |
HD (as fighter) |
Fort, Ref |
2 + Int mod per HD |
Monstrous humanoid |
d8 |
HD (as fighter) |
Ref, Will |
2 + Int mod per HD |
d10 |
HD x3/4 (as cleric) |
- |
2 + Int mod per HD** |
|
Outsider |
d8 |
HD (as fighter) |
Fort, Ref, Will |
8 + Int mod per HD |
Plant |
d8 |
HD x3/4 (as cleric) |
Fort |
2 + Int mod per HD** |
Undead |
d12 |
HD x1/2 (as wizard) |
Will |
4 + Int mod per HD** |
Vermin |
d8 |
HD x3/4 (as cleric) |
Fort |
2 + Int mod per HD** |
All types have a number of feats equal to 1 + 1 per 3 Hit Dice. |
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* As long as a creature has an Intelligence of at least 1, it gains a minimum of 1 skill point per Hit Die. |
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** Creatures with an Intelligence score of '-' gain no skill points or feats. |
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A creature may become larger when its Hit Dice are increased (the new size is noted parenthetically in the monster's Advancement entry).
A size increase affects any special ability the creature has that is affected by size. Increased size also affects a creature's ability scores, AC, attack bonuses, and damage values as indicated on the tables below.
Table: Changes to Statistics by Size |
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Old Size* |
New Size |
Str |
Dex |
Con |
Natural Armor |
AC/ Attack |
Fine |
Diminutive |
Same |
-2 |
Same |
Same |
-4 |
Diminutive |
Tiny |
+2 |
-2 |
Same |
Same |
-2 |
Tiny |
Small |
+4 |
-2 |
Same |
Same |
-1 |
Small |
Medium |
+4 |
-2 |
+2 |
Same |
-1 |
Medium |
Large |
+8 |
-2 |
+4 |
+2 |
-1 |
Large |
Huge |
+8 |
-2 |
+4 |
+3 |
-1 |
Huge |
Gargantuan |
+8 |
Same |
+4 |
+4 |
-2 |
Gargantuan |
Colossal |
+8 |
Same |
+4 |
+5 |
-4 |
*Repeat the adjustment if the creature moves up more than one size. |
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Table: Increased Damage By Size |
|
Old Damage (Each)* |
New Damage |
1d2 |
1d3 |
1d3 |
1d4 |
1d4 |
1d6 |
1d6 |
1d8 |
1d8 |
2d6 |
1d10 |
2d8 |
2d6 |
3d6 |
2d8 |
3d8 |
* Repeat the adjustment if the creature moves up more than one size category. |
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