Armor Class 18
Hit Points 255 (30d8 + 120)
Speed 30 ft., fly 30 ft.
Saving Throws DEX +8, CON +9, INT +10, WIS +8
Skills Arcana +10, Perception +8
Senses Blindsight 30 ft., passive Perception 18
Languages Common, Draconic, Gith
Challenge 16
Multiattack. The githyanki makes three Draconic Strike attacks.
Draconic Strike. m,r +10, reach 10 ft. or range 120 ft. Hit: 12 (2d6 + 5) Slashing damage plus 17 (5d6) Fire damage, and the target has the Frightened condition until the start of the githyanki's next turn.
Conjured Dragon's Breath (Recharge 5–6). dex DC 18, each creature in a 90-foot Cone. 27 (6d8) Fire damage plus 27 (6d8) Force damage. Half damage.
Monster Manual (2024), p. 135