That's how i do it. There's a pattern to it and they don't switch their attacks randomly, right? The truth is that it's not. It's the fact that they do not strike with melee in any way which is why it's better to believe in magic or range. If they're about to start range, and they shout, a little bone shard may appear as it moves upwards however it could be difficult to identify sometimes. Check for any signs that the demon has been slaying. At Slayer Tower you'll be able to kill them more quickly with melee, so if that's what you're hoping for, go down that route. Armor is the most reliable magic protection (Attack is melee however its defense is based on magic, hence d'hide, and the like) or in the event that you'd like to pray (Bit of an unnecessary expense unless you're fighting the mutants with cannon) the best prayer protection and pray for protection from melee. If you're using weapons, pick your best weapon to slash. Personally, I would prefer range because they're amazing as range xp are essentially huge meatsacks. Additionally, there are lots of semi-safespots within the slayer towers that can be used to separate them from. Because you'll be trying to keep them out of sight (Getting them stuck in walls, piles of rubble and other things since they require 2 squares) pick the top range of equipment and accessories, such as archer's helm/robin, finest snakeskin boots/ranger. For weapons, you can use a magic crossbow or rune shortbow with the arrows and bolts you want. If you've completed seergaze's legacy but need the most speedy xp, bring your cannon, prayer gear, and other weapons into the tunnels around the altar of blood. Find the room with altered ones, pray melee before you start your cannon. Want to learn more about OSRS gold at https://www.rsgoldfast.com