Black Dragon 20
Blue Dragon 17
Brown Dragon 20
Green Dragon 20
Gray Dragon 20
Rahab, the Grey Dragon 21 Orange Dragon 22
Purple Dragon 20
Rainbow Dragon 14
Red Dragon 20
White Dragon 21
Yellow Dragon 20 Tiamat, Queen of Chaotic Dragons 18 - Hasn't she been on enough lists??
Black Dragon 20
Blue Dragon 18
Brown Dragon 20 Green Dragon 21
Gray Dragon 20
Rahab, the Grey Dragon 21
Orange Dragon 19
Purple Dragon 20 Rainbow Dragon 10 - this is okay for sherbet, but not so much for dragons. Heck @dave2008 didn't even want to give it a number!
Red Dragon 21
White Dragon 21
Yellow Dragon 20
Tiamat, Queen of Chaotic Dragons 19
Black Dragon 20
Blue Dragon 18
Brown Dragon 20
Green Dragon 20
Gray Dragon 20
Rahab, the Grey Dragon 21 Orange Dragon 19 - This accounts for the missing -1, and my +1. @RealAlHazred
Purple Dragon 20
Rainbow Dragon 10
Red Dragon 21
White Dragon 21
Yellow Dragon 20 Tiamat, Queen of Chaotic Dragons 17 - But seriously, she shouldnt be on the list.