Agreed with Cleon here.
Their culture is nomadic, which suggests psychoportation. But they tend towards either illusion or divine spells in the original version, which feels kind of like psychometabolism or metacreativity. I guess I could go for any of those, but psychoportation maybe is a little better. Not sure, what does everyone else think?
Let's stick with psion over psychic warrior, to better fit with the other gem dragons.
If we do make a non-psionic alternative, I think Cleon's spellcasting suggestions should work.
Based on RavinRay's explanation, I think we can drop the fire resistance
Crystal drakes are very fond of jewels, gems, and crystals. They each have two cheek pouches, much like hamsters, in which they can store up to four gems. Their senses of smell and taste are very keen, and they can actually sense the presence of precious stones within 10’. Indeed, crystals, gems, and jewels are a necessary part of a crystal drake’s diet. Each drake must consume at least 5 gp of gems per week, or its hide loses its crystalline sheen and the powers associated with it. A crystal drake loses one point of armor class per week without the diet of gems, down to a minimum of AC 5. Once its proper diet is reestablished, it gains its armor class back at the same rate. For each week without a gem diet, there is a cumulative 25% chance that its spellreflecting power will not function. After one month without eating the required amount of gemstones, the crystal drake’s immunity to the spells given above is lost, and its hide becomes a dull gray. Even if the specific spell immunity is lost, the crystal drake still retains its natural resistance to magic.
Ingesting certain gemstones has strange effects upon crystal drakes. They are aware of these effects and often carry some of these gems in their mouth pouches for emergencies. For a gemstone to affect a crystal drake, a minimum amount of that particular gem must be consumed. These gems and effects are given in Table 3. Only one of these gem effects can be in effect at one time. If a new gem is ingested before the effects of the last gem is over, the prior effects are lost.
Crystal Drakes. Special Gem Powers
Gemstone type Min. gp value consumed Effect and duration
Alexandrite 100 Adds +2 to saving throws for one turn
Amber 100 Grants immunity to disease for 3 rounds, or cures same
Amethyst 100 Grants immunity to paralysis and poison for 1 turn, or cures same
Beryl 100 Improves armor class by two steps for 1 turn
Carbuncle 100 Allows use of polymorph self into dragon form 10 X larger in size, once per week
Chrysoprase 100 Grants improved invisibility (as per the illusionist spell) for 2-8 rounds
Coral 100 Grants immunity to insanity for 10 turns, or cures same
Hematite 10 Heals 1-4 hp damage, up to four times per day
Jacinth 250 Grants a + 1 on all saving throws and armor class for 2-8 hours
Jasper 50 Grants +4 to saving throws vs. poison for 1 turn, or allows for a new saving throw at + 4 if consumed after eater was poisoned
Lapis lazuli 50 Adds + 1 to to-hit scores for 1 turn
Peridot 250 Adds +4 to all saving throws for 1 turn
Ruby 100 Adds + 2 to saving throws, and acts as a luckstone, for 1 turn
Sapphire 250 Allows the casting of known spells only as if one level higher, only once per day
Topaz 250 Creates a minor globe of invulnerability around the eater for 1 turn
Note: See the 1st Edition Dungeon Masters Guide, pages 26-27, for the possible effects of other consumed gems.
Assuming that the drake already has the said gems in its cheek pouches, would it really take a standard action to swallow it, or could it be just a free action?Activation
Drinking a potion or applying an oil requires no special skill. The user merely removes the stopper and swallows the potion or smears on the oil. The following rules govern potion and oil use.
Drinking a potion or using an oil on an item of gear is a standard action. The potion or oil takes effect immediately. Using a potion or oil provokes attacks of opportunity. A successful attack (including grappling attacks) against the character forces a Concentration check (as for casting a spell). If the character fails this check, she cannot drink the potion. An enemy may direct an attack of opportunity against the potion or oil container rather than against the character. A successful attack of this sort can destroy the container.
A creature must be able to swallow a potion or smear on an oil. Because of this, incorporeal creatures cannot use potions or oils.
Any corporeal creature can imbibe a potion. The potion must be swallowed. Any corporeal creature can use an oil.
A character can carefully administer a potion to an unconscious creature as a full-round action, trickling the liquid down the creature’s throat. Likewise, it takes a full-round action to apply an oil to an unconscious creature.
Now that I like!That could work.
Alternatively, rather than give them SLAs at various levels like most dragons, perhaps we can give them a "digest gem" power that grants specific benefits at certain age categories, regardless of the type of gems consumed?
For example, an old crystal drake could consume 100 gp in gems to apply the Empower Power metapsionic feat to the next power it manifests. An adult crystal drake could consume 50 gp in gems to manifest the expansion power on itself. And so on...