If your talking about the Dragon Slayer in Adventure Quest then it's called Guardian and yes you do. Scholar and Fighter both have to reach level 10 before you can exceed in the Dragon Slayer Class. As a Normal User your Class can only reach 5 MAX.
No, membership is not needed to get Dragon Slayer Class.
you need to get 5 undead slayer badges
There is no doom slayer. you need to buy it
go to runehq.com they have everything you will need for runescape
If you want to, u need to beat the red dragon 8 times. answer from DrakoFighter
If you look at the Dragon Slayer quest in your quests tab, it should tell you all the recommendations that you will need, if it doesn't or they are lined out - it means that you are ready to start the quest.
You first need dragon amulate in dragonfable then you go to the aqworlds home page and look at the left. Keep scrolling down till you see Verify Dragonlord then you click on that put your drgon amulate account in dragon fable then wait a while. Log back in to aqworlds and then go to the tower and then go to the dragonlord guy click on him click shop and the surprise.
You just fight him, and have a good amount of food on you. You will need a dragonfire shield. That's about it.
You need to do Champions quest to get in ( Dragon Slayer ).
Given that Runescape itself is a browser game, yes.
No you dont need to complete dragon slayer to get one but all vissage drops are extremely rare like 1000 in 20000 rate.
you dont have to be a member to fight a dragon, you fight a green dragon in the quest Dragon Slayer to where a rune platebody. So no you don't need to be a member to fight a dragon.