There are multiple kings in aqworlds.
never
You have to complte the quest from the the king of SwordHaven and Shadowfall lady.
King Alteon the Good is the king of the largest city in Lore called Swordhaven. He has three daughters and carries a dragonblade sword.
You need to complete Nythera's quests in the iceland.
im thinking about 1%
You buy King Alteon's blade from the Good Shop (not good rep shop.) It's for members only sadly.
No, you can not be invincible in AQWorlds.
You can not. AQworlds does not have a trade system.
You can only have one armor on at a time in AQWorlds. You cannot combine armors in AQWorlds.
Kuro is the boss in the river in aqworlds.
download the aqworlds battle bar
You can't exactly be a Guardian on AQWorlds, but you can verify on AQW that you have Guardian on the original Adventure Quest and get Guardian class in AQWorlds. :)