Owl to Zuko, who needs to look up 'Prince Formerly Known As' in pop culture books
What's Agni Kai? And I see. Trying to scorch the inside of someone's lungs would be overkill, then. Fire isn't exactly an element that I can think of being able to use to knock people out without harming them. Maybe smoke inhalation would render them unconscious but not do too much damage?
...Oh. Is it a family tradition and if so, are you going to have to do that as well? And when you say defeat, do you mean kill or knock out or duel to the standards of Agni Kai? Will people STOP FUCKING KILLING DRAGONS?
Off the top of my head, the seven types are:
1) Common Welsh Green 2) Hebridean Black 3) Hungarian Horntail 4) Norwegian Ridgeback 5) Romanian Longhorn 6) Swedish Short-Snout 7) Ukrainian Ironbelly
The first two are the easiest for you to encounter since they're in Britain with the other five residing on Continental Europe.
...I still don't think that it makes any sense that Europe should have seven different types of dragons if Asia only has one when Asia is so much bigger.