As for their reflective spell immunity, how about just say they're immune to light-based spells (colour spray, prismatic sphere, light et cetera) and such spells cause it to flash brightly on impact, causing blindness to all within 20 feet who fail to save against the spell's DC, said blindness lasting 1 round per spell level?
I'd drop the reflecting magic missiles bit, since I don't see why it should work on force effects.
They should probably be immune to supernatural and spell-based blindness, too.
That's an idea about the reflection, Cleon, though I want to think more about it.
Let's start with the simple stuff. Rather than a breath weapon, the original text says they spit acid 4/day. Switch to a line of acid?
Speaking of breath weapons, I just noticed that the demon drake always has a 15ft cone, even though its size advances from T to S. Is that what we wanted to do?
Eh? An ankheg spits acid as a 30 ft line attack, so it just seems to be quibbling about a name. Besides, the Crystal Drake's AD&D stats have "Minor breath weapon" right there in SPECIAL ATTACKS, so I think we should just call a spade a spade and make it a breath weapon.
15 foot line works fine for me. We may up it to 20 foot for the larger ones.
Which leads us to the question of how big they are. Going by the lengths age categories 1-3 or 1-4 are Tiny (length 1' to 1'9" or 2'), but the bigger ones may be Small, since they're over 2 foot long.
So, shall we say Very Young to Young Adult are Tiny, Adult to Ancient are Small?
Yeah, I think the breath weapon sizes should be as usual for true dragons.
So, are we agreed that the crystal drakes have a line of acid regular breath weapon?
For the demon drake, the last few age categories bumped up to Small (I haven't gone back and checked the faerie drake), so we can do that here, too.
Agreed to all that. An advantage of keeping the acid as a "breath weapon" is that it allows the drake to take some of the cool feats in the Draconomicon.
I need to dig through the thread and find where we determined the manifester level and if we determined ability score progression.
I can't seem to find an ability progression suggestion for the crystal drake, but comparing it to the others:
Int: Low to High
Demon Drake: Average to high
Faerie Drake: Low to average
That all sounds reasonable.
Hmmm, if it's an innate 1st-level psion at young and juvenile ages it needs a minimum Int of 11 to manifest its 1st-level powers, so adding +1 Int per age (making all scores odd) is needed I think.
All ancient crystal drakes are known to have the ability to go ethereal once per week, and they have the ability to transport up to four of their clan members with them. These ancient drakes often use this ability to travel to and forage on the plane of elemental Earth, as well as to escape capture or worse.
Should it have the Earth subtype?
Planar travel (like gem dragons) gained at the ancient category?
Planar Travel (Su): Gem dragons have the innate ability to pass instantly between the Material Plane and the Inner Planes, where they often make their homes.