This is how I do it. This is a pattern. they don't change their attack randomly, do they? It's not, it's only that OSRS gold they don't attack with melee all the time therefore it's better to be praying for magic or range. When they're about to begin expanding, as they roar, a little bone shard appears, and move upwards, though it can be difficult to identify often. Watch out for signs that you see the demon slashing.

At Slayer Tower you'll destroy them faster using melee so if you're after, take this route. Armor is the most reliable magic protection (Attack is melee but its defense is based off magic, so d'hide and the similar) or if you feel like praying (Bit of a waste unless you're fighting the mutated ones using cannon) then best prayer protection and pray to protect melee. For weapons , choose your most effective tool for slashing.

But I personally prefer range since they're quite amazing with range xp, which is essentially huge meatsacks. Furthermore, there are a number of semi-safespots in the slayer tower to range them from.

As you'll need to keep them out of sight (Getting them stuck on walls, piles of rubble and the like since they are 2 squares) choose the best range-enhancing equipment, like an archer helm/robin, the best dragonhide, snakeskin boots and ranger.

For weapons, you can use a magic shortbows or rune crossbows using the arrows or bolts of your choice. If you've already completed the legacy of seergaze though and would like the fastest xp then you should take a prayer gear and a cannon to the tunnels that are near the blood altar. Look for the room with modified ones, pray and then start the cannon. Make sure auto retaliate is on and go. Task will be over before you know it. It's not cheap money but it's definitely one of the fastet task you'll get. Also, since they've got a large amount of hitpoints, it's also among the best options for rs 2007 gold the amount of xp.