Spellcasting. The draconian casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 12):

Death Throes. When the draconian is reduced to 0 hit points, its scales and flesh immediately shrivel away and its bones explode. Each creature within 10 feet of it must succeed on a DC 10 Dexterity saving throw or take 9 2d8 force damage.
Glide. When the draconian falls and isn't incapacitated, it subtracts up to 100 feet from the fall when calculating the fall's damage, and it can move up to 2 feet horizontally for every 1 foot it descends.