Anyway - I think varying ACs is a bit of overkill for the dragon warrior (AC is a bit flattened in 5e anyway), other comments taken on board and adjusting momentarily. Taken onbard other tweaks - gone for CON 17 and 10d8+30 for 75hp.
Well we could have a single AC for a generic Dragon Warrior and give it a Variants entry with the ACs and immunities of specific colors/metals of Warrior.
Maybe just pick a particular Dragon as the fang-parent of the sample Dragon Warrior like, say, a Brass Dragon.
If we do go for one AC I'd prefer 17 over 18.
None of the Medium sized Wyrmling in the SRD have AC 18, they're all either 16 or 17 and the Young Dragons are 17 or 18, putting 17 neatly in the middle.
I tend to agree with AC being a "constant" rather than changing as per that of the parent dragon. The differences can be huge in 2E (somewhat less so in 5E, I've seen) and this thread has got me thinking about my 2E conversion and I've decided to go for a "stable" AC by having all dragon warriors have an AC as a 2E Very Young dragon, regardless of the age of the parent dragon.
1E didn't have a changing AC for dragons and 1E dragon ACs became those for 2E Very Young dragons (mostly). In fact, I suppose it could be argued that variable ACs per dragon type for dragon warriors would sort of deviate from the original.
Using the AC of 2E Very Young dragons will still lead to dragon warriors from different parent dragons having their own AC, but that was also true for the original dragon warriors.
I wouldn't know which 5E AC to choose, though.
The problem is not so much what the age category is, but that it had the AC of any standard dragon.
We were going for adjacent age categories, so the difference will only be a point of AC in 2E or 5E.
In 5E the different types of chromatic/metallic dragons don't vary that much in Armour Class (see table), especially at the younger ages. There's a difference of a point of AC at Wyrmling, Young and Adult ages (e.g. Brass vs Red a hatchling Brass is AC 16, a Red AC 17), but at Ancient the difference can be up to two points of AC (White & Brass Ancients have AC 20; Green & Copper Ancients AC 21; Black, Blue, Red, Bronze & Gold have AC 22).
Fifth Edition Dragons
Dragon | Wyrmling | Young | Adult | Ancient |
---|
Black | AC 17 | AC 18 | AC 19 | AC 22 |
Blue | AC 17 | AC 18 | AC 19 | AC 22 |
Green | AC 17 | AC 18 | AC 19 | AC 21 |
Red | AC 17 | AC 18 | AC 19 | AC 22 |
White | AC 16 | AC 17 | AC 18 | AC 20 |
Brass | AC 16 | AC 17 | AC 18 | AC 20 |
Bronze | AC 17 | AC 18 | AC 19 | AC 22 |
Copper | AC 16 | AC 17 | AC 18 | AC 21 |
Gold | AC 17 | AC 18 | AC 19 | AC 22 |
Silver | AC 17 | AC 18 | AC 19 | AC 22 |
However, in earlier editions (1E to 3E) a True Dragon kept the same AC relationship to other types across its entire age range.
If an AD&D or 3E Brass Dragon had X higher AC than a Red Dragon as a Hatchling it still had X higher AC when it had reached Ancient or Great Wyrm status.
In AD&D the Armour Classes had a range of six steps: In 1E the standard dragons went from AC 3 Black/White to AC –2 Gold, in 2E they went from AC 1 Black/Copper/White to AC –4 Gold.
Remember that 1E True Dragons have the same AC at all ages, while 2E True Dragons had AC that also varied with age.
If we were being true to the original monster the AC should differ for Dragon Warriors created from Dragons with better/worse AC and the difference can be quite substantial.
Hmm… I'm starting to think we should have entries for multiple different Dragon Warrior, one for each colour and metal of the standard dragon types.