
RuyanVe |

Greetings, fellow traveller.
AC is normally calculated like this:
AC = 10 + Armor + Dex Modifier + Deflection Bonus + Dodge Bonus + Natural Armor + Other Bonus
Armor Class
Your Armor Class (AC) represents how hard it is for opponents to land a solid, damaging blow on you. It's the attack roll result that an opponent needs to achieve to hit you. Your AC is equal to the following:
10 + armor bonus + shield bonus + Dexterity modifier + other modifiers
Note that armor limits your Dexterity bonus, so if you're wearing armor, you might not be able to apply your whole Dexterity bonus to your AC (see Table: Armor and Shields).
Sometimes you can't use your Dexterity bonus (if you have one). If you can't react to a blow, you can't use your Dexterity bonus to AC. If you don't have a Dexterity bonus, your AC does not change.
Other Modifiers: Many other factors modify your AC.
Enhancement Bonuses: Enhancement bonuses apply to your armor to increase the armor bonus it provides.
Deflection Bonus: Magical deflection effects ward off attacks and improve your AC.
Natural Armor: If your race has a tough hide, scales, or thick skin you receive a bonus to your AC.
Dodge Bonuses: Dodge bonuses represent actively avoiding blows. Any situation that denies you your Dexterity bonus also denies you dodge bonuses. (Wearing armor, however, does not limit these bonuses the way it limits a Dexterity bonus to AC.) Unlike most sorts of bonuses, dodge bonuses stack with each other.
Then, look here
The first table gives you the information that a wyrmling black dragon gets its base NA and base size.
The second table gives you the information that a wyrmling black dragon gets its base Dex ability score.
Further down you get the basic stat block of a black dragon.
Pulling all together you get:
AC = 10 + 3 (Dex modifier) + 2 (size modifier for being tiny, one of the "other modifiers") + 3 NA = 18.
Ruyan.

mark scully |

Greetings, fellow traveller.
AC is normally calculated like this:
AC = 10 + Armor + Dex Modifier + Deflection Bonus + Dodge Bonus + Natural Armor + Other Bonus
** spoiler omitted **Then, look here
The first table gives you the information that a wyrmling black dragon gets its base NA and base size.
The second table gives you the information that a wyrmling black dragon gets its base Dex ability score.
Further down you get the basic stat block of a black dragon.Pulling all together you get:
AC = 10 + 3 (Dex modifier) + 2 (size modifier for being tiny, one of the "other...
aaaah ofcourse how silly i am..
thanks man