So currently in my fantasy universe 2 races are at war, the Anglar and the Darus. (I previously had a question about melee combat while fighting ground troops that involved the same races, if some are wondering why this looks similar).
Anglar: winged humans (basically Angels without holy powers).
Darus: lizard people, they used to have wings but a strange ailment caused most of them to lose their wings.
Terrain: flying islands in the sky. Think Avatar's flying mountains (the blue people Avatar), below is a mist covered chasm that falls for many fathoms. We're unable to know if it has a bottom. The Darus use mages to build bridges across to each island to get across (but this takes time), the Anglar just fly across.
Some quickly built forts for the Darus, and several starter colonies for the Anglar.
Background: the Darus were in a mass migration due to the loss of their wings and an earthquake destroying their home. They found the flying islands but also found the Anglar who are an extremely prideful race and find any other creature who can fly their lesser. The Anglar began an extermination campaign on the Darus due to similarities to dragons, which the Anglar exterminated. With nowhere else to go the Darus launched total war on the Anglar colonies.
During this war the Darus discover dragons, and they make a pact with the dragons against the Anglar, as they both hate them, the dragons were though to be hunted to extinction by the Anglar.
Dragon info: they are intelligent beings, who can breath fire (duh), and are immune to pure magic attacks (like throwing a mountain with magic could still harm them, but a beam of magic energy would do nothing). Their only weak spots are their eyes, ears and throat, everything else is completely covered by a hard layer of scales.
The Anglar were able to win the first war/extermination of the dragons due to their use of barbed spears and a poison called bleeder savant. This poison would cause a wound to bleed profusely and almost never heal. They would trap dragons in heavy nets and then shove these spears in the dragons throats causing deep wounds within their throat, causing them to drown in their own blood.
But what other weapons would wing humans fight dragons with? as the terrain is much different in floating islands, than regular terrain.