Dragon spawn fill the role of minions for the Dragons not named Toruk.
Dragonspawn come in various shapes and sizes ranging from the winged Seraph (CR 9), the sneaky Terraph (CR 8) to the terrifying Carnivean (CR 12+).
Dragonspawn are more cunning than they appear. They think for themselves and some are cunning hunters. It took 2,000 Irkusskan soldiers and cavalry to deal with 200 dragonspawn after the Death of Orion.