Converted to 3rd Edition from the 2nd Edition Mystara Monstrous Compendium Appendix TSR 2501.
Robert J Schwalb
robert84@mindspring.com
		Dragon, Crystalline
Dragon (Cold)
Climate/Terrain: Cold Mountains and any Arctic
Organization: Wyrmling, very young, young, juvenile and young adult; solitary or clutch (1d4+1); adult and older: solitary, pair, or family (1d4+1)
Challenge Rating: Wyrmling 4, Very Young 6, Young 9, Juvenile 11, Young Adult 16, Adult 18, Mature Adult 20, Old 21, Very Old 23, Ancient 24, Wyrm 26, Great Wyrm 27
Treasure: Double Standard
Alignment: Always Lawful Neutral
Advancement: Wyrmling 7-8 HD (Small), Very Young 10-11 HD (Medium), Young 13-14 HD (Medium), Juvenile 16-17 HD (Large), Young Adult 19-20 HD (Large), Adult 22-23 HD (Huge), Mature Adult 25-26 HD (Huge), Old 28-29HD (Huge), Very Old 31-32 HD (Huge), Ancient 34-35 HD (Gargantuan), Wyrm 37-38 HD (Gargantuan), Great Wyrm 40+ (Gargantuan)

Mystaran Crystalline Dragons stand apart from other crystal dragons by dint of their size and toughness, but without the psionic abilities that usually typify gem dragons. Furthermore, their breath weapon functions as a magical effect while duplicating the effects of a White Dragon’s breath. 
At birth, Crystalline Dragons have white scales, glossy and opaque, resembling packed snow. Over time, the scales become more translucent. They are painful to behold in brighter light, but beautiful in soft lighting.

Combat
Breath Weapon (Su): A Crystalline Dragon’s breath weapon functions as a Cone of Cold (as a White Dragons) but failure indicates not only full damage, but item saving throws for all equipment. It any given item fails, it is turned to crystal, with an 80% chance of breakage when used.
Cold Subtype (Ex): Cold immunity, double damage from fire based attacks on failed saves.
Spell-like abilities: 3/day –color spray, hypnotic pattern, wind wall, and ice storm; 1/day –Otiluke’s Freezing Sphere.

Crystalline Dragons by Age
Age	Size	Hit Dice (hp)	AC	Attack Bonus	Fort Save	Ref Save	Will Save	Breath Weapon (DC)	Fear DC	SR	
Wyrmling	S	6d12+12 (51hp)	19 (+8 nat.)	+7	+5	+5	+5	2d4 (14)	-	-	
Very Young	M	9d12+12 (70hp)	21 (+11 nat.)	+9	+6	+6	+6	4d4 (16)	-	-	
Young	M	12d12+36 (114hp)	24 (+14 nat.)	+12	+8	+8	+8	6d4 (18)	-	-	
Juvenile	L	15d12+45 (142hp)	26 (-1 size, +17 nat)	+14	+9	+9	+9	8d4 (20)	-	-	
Young Adult	L	18d12+72 (189 hp)	29 (-1 size, +20 nat)	+17	+11	+11	+11	10d4 (24)	22	19	
Adult	H	21d12+84 (220hp)	31 (-2 size, +23 nat)	+19	+12	+12	+12	12d4 (25)	25	21	
Mature Adult	H	24d12+120 (270hp)	34 (-2 size, +26 nat)	+22	+14	+14	+14	14d4 (27)	26	23	
Old	H	27d12+189 (364hp)	37 (-2 size, +29 nat)	+25	+15	+15	+15	16d4 (29)	29	25	
Very Old	H	30d12+210 (410hp)	40 (-2 size, +32 nat)	+28	+16	+16	+16	18d4 (31)	31	26	
Ancient	G	33d12+231 (445hp)	41 (-4 size, +35 nat)	+29	+17	+17	+17	20d4 (33)	34	28	
Wyrm	G	36d12+288 (522hp)	44 (-4 size, +38 nat)	+32	+19	+19	+19	22d4 (34)	36	29	
Great Wyrm	G	39d12+351 (604hp)	48 (-4 size, +42 nat)	+35	+20	+20	+20	24d4 (38)	39	31	
Crystalline Dragon Abilities by Age
Age	Speed	Str	Dex	Con	Int	Wis	Cha	Special Abilities	Caster Level	
Wyrmling	40 ft. fly 100 ft. (average)	12	11	15	15	14	14	Cold, Earth Subtype, polymorph self	-	
Very Young	40 ft. fly 150 ft. (poor)	14	11	15	15	14	14		-	
Young	40 ft. fly 150 ft. (poor)	16	11	17	17	16	16		-	
Juvenile	40 ft. fly 150 ft. (poor)	18	11	17	17	16	16	Color Spray	1st	
Young Adult	40 ft. fly 150 ft. (poor)	20	11	19	19	18	18	Damage Reduction 5/+1	3rd	
Adult	40 ft. fly 150 ft. (poor)	24	11	21	19	18	18	Hypnotic Pattern	5th	
Mature Adult	40 ft. fly 150 ft. (poor)	28	11	23	21	20	20	Damage Reduction 10/+1	7th	
Old	40 ft. fly 150 ft. (poor)	30	11	23	21	20	20	Wind Wall	9th	
Very Old	40 ft. fly 150 ft. (poor)	32	11	25	23	22	22	Damage Reduction 15/+2	11th	
Ancient	40 ft. fly 200 ft. (clumsy)	34	11	25	23	22	22	Ice Storm	13th	
Wyrm	40 ft. fly 200 ft. (clumsy)	36	11	27	25	24	24	Damage Reduction 20/+3	15th	
Great Wyrm	40 ft. fly 200 ft. (clumsy)	38	11	29	25	24	24	Otiluke’s Freezing Sphere	17th