Blackhawkswincup
RIP Fugu
"The scales of a full grown dragon were harder than steel, and even those arrows that struck home seldom penetrated enough to do more than enrage the great beasts. But as Meraxes banked above the Hellholt a defender atop the castle's highest tower triggered a scorpion and a yard long iron bolt caught the Queen's dragon in the right eye. Meraxes did not die at once but came crashing to earth in mortal agony..."
Fire and Blood
"One dragon in recorded history has been brought down from the air by a projectile, and it was a one in a million shot. A mature dragon in the air is virtually invulnerable" -George R.R. Martin
Yet in books a magic horn brings down Dragons? LOL , And book readers bitch about how Dragons have died on show
Also if you had Dragons as so powerful and invulnerable it would be hard to accept that they dwindled to point of extinction level thru reign of Targs
By logic put forth the idea of Targ family ever losing power should have been absurd because they should have had numerous full grown Dragons