I apologize for taking up this whole board with my own stuff but this wouldnt have fit in one of my other threads.
Racial:
Tiny Dragon
Darkvision out to 60 feet and low-light vision.
Immunity to magic sleep effects and paralysis effects.
+2 Str, +2 Cha
Level HD BAB Fort Ref Will Size Age Skill points Breath Ability Special Natural Armor Speed
1. 1d12 +1 +2 +2 +2 Tiny Wyrmling (6+Int)*4 1d6 Feat +1 40 ft
2. 2d12 +2 +3 +3 +3 6+Int Immune to Sonic +2 40 ft
3. 3d12 +3 +3 +3 +3 6+Int 2d6 Feat +3 40 ft
4. 4d12 +4 +4 +4 +4 6+Int +2 Cha +4 40 ft, 100ft (average)
5. +2 Str +4 40 ft, 100ft (average)
6. 5d12 +5 +4 +4 +4 Small Very Young 6+Int 3d6 +2 Con +5 40 ft, 100ft (average)
7. 6d12 +6 +5 +5 +5 6+Int Feat +6 40 ft, 100ft (average)
8. 7d12 +7 +5 +5 +5 6+Int 4d6 Protecton from Evil +7 40 ft, 100ft (average)
9. 8d12 +8 +6 +6 +6 6+Int +8 40 ft, 100ft (average)
10. +2 Int +8 40 ft, 100ft (average)
11. 9d12 +9 +6 +6 +6 6+Int 5d6 +2 Str Feat +9 40 ft, 100ft (average)
12. 10d12 +10 +7 +7 +7 Medium Young 6+Int +2 Con +10 40 ft, 150ft (Poor)
13. 11d12 +11 +7 +7 +7 6+Int 6d6 +11 40 ft, 150ft (Poor)
14. 12d12 +12 +8 +8 +8 6+Int Feat +12 40 ft, 150ft (Poor)
15. DR 5/Magic +12 40 ft, 150ft (Poor)
16. 13d12 +13 +8 +8 +8 6+Int 7d6 +2 Wis +13 40 ft, 150ft (Poor)
17. 14d12 +14 +9 +9 +9 6+Int +2 Str Aid, Shield Other +14 40 ft, 150ft (Poor)
18. 15d12 +15 +9 +9 +9 Juvenile 6+Int 8d6 +2 Con Feat +15 40 ft, 150ft (Poor)
19. 16d12 +16 +10 +10 +10 6+Int +16 40 ft, 150ft (Poor)
20. DR 10/Magic +16 40 ft, 150ft (Poor)
Class Skills:
Listen, Search, Spot, Concentration, Diplomacy, Escape Artist, Intimidate, Knowlege(any), Sense Motive, Use Magic Device and Preform
Size:
At level 6 a Battle Dragon increases in size to small, its ability bonuses do not increase because of this but AC and attack bonus will to reflect its larger size. At level 12 it advances once again to medium size.
Age:
Any effect refering to the dragons age uses the most recent age on the table, thus a level 11 dragon is still very young but a level 12 dragon is just young. you may only multiclass out of the Battle dragon class at the level immediately after you gain an age category (2/7/13/19)
Breath:
A battle dragon has two types of breath weapon, a cone of sonic engergy and a cone of fear gas. Creatures withing the cone of fear gas muse succeed on a will save (DC 10+ 1/2 HD + Con) or become shaken for 4d6 rounds. Multiple exposures are not culmative.
Spell Like abilities:
Beginning at level 8 three times per day a Battle dragon may use Protection from Evil as a Spell Like ability. At level 18 it also gains the ability to use Aid 3 times a day and Shield other once a day.
Wings:
Beginning at level 4 a Battle Dragon can fly at 100ft/round with average manuverability, When the dragon becomes Medium sized at level 12 the speed increases to 150/round but the manuverability decreases to Poor. These speeds are during combat, Dragons are exeedingly strong flyers and can cover vast distances quickly. At level 4 a Battle Dragon's Overland fly speed is 15 miles/hour or 24 miles/hour if it hussles. At level 12 this increases to 20 miles/hour or 40 miles/hour doing a hustle. Dragons tire more slowly than other creatures. If a dragon attempts to hustle or Forced march, check for nonlethal damage once every 2 hours instead of every hour.
Natural Armor:
A Battle Dragon has natural armor equal to its HD.
Attacks:
A Tiny dragon has 1 bite attack (1d4) and two claw attacks (1d3), when size increases to small this increases to 1d6 and 1d4 respectivly. When the dragon becomes medium sized its bite increases to 1d8, its claws increase to 1d6 and it can slam its wings into its opponent for 1d4 damage. In all cases bite is the primary attack.
True Dragon:
A battle dragon is a true dragon, it uses all the rules for true dragons presented in the monster manual (Blindsight, extra reach on bites etc)
Obvious issue is the 20th level, which offers no real bonuses, I could swap 19 and 20 round but mathematically +4 LA over 20 levels is 5 10 15 and 20 if level 1 cant be LA and you want to divide equally... Level 18 is where the battle dragon actually sits with Juvenile (14 hd +4 LA) so the last 2 levels are there to round it out and make everything easier to divide up, besides a dragon that revolves around fighting in melee (and never gets casting) should get at least +16 BAB in 20 levels.