Choose a test user to login and take a site tour.
Black Dragons are tanky,slow to RuneScape gold kill,and logistically annoying. You'll need either a Dragonfire shield or Antifire Potions,and ideally a Dragon Hunter Lance for efficient kills — not a cheap investment for a Slayer-only task.
Duradel typically assigns them in very small amounts (10-20),which contradicts our goal of doing high-volume,high-XP tasks in safe spots or cannon-friendly areas. Sure,the bones are good for Prayer XP,but overall,Black Dragons just don't contribute meaningfully to Slayer XP gains.
4. Greater Demons & Black Demons
Greater Demons Task Weight: 9
Black Demons Task Weight: 8
These two should almost always be blocked for similar reasons. They are single-target,have a poor drop table,and are often found in crowded spots where other players may crash or compete for kills.
They also take a while to kill and are frequently assigned in large quantities — sometimes 130 to 200 at a time. This leads to long,tedious tasks with little reward. If you're an Ironman,they might be more useful for grinding out demon-specific drops or farming shards,but for RS gold for sale the average player,these are massive XP sinks.