Someone asked "How do you farm Black Lion Keys?" : Guildwars2. Guide to Farming Black Lion Chest Keys. Now you could purchase the keys at one for 125 gems (vaguely a dollar and a half) , or 5 for 450 (just over five dollars).
You could try to convert your gold to gems at a conversion rate that is steadily increasing. However, there is a great method one we're going to outline in this guide fully to help you farm Black Lion Keys in as little time as thirty minutes to an hour, depending on if you have any help. Guild Wars 2: News and Discussion. GW2 Professions Guide. Guild Wars 2 Wiki.