I agree with suggestion, something like superior versions of slayer monsters we have already ing making it more challenging to do the task and just easy and afk walthrough with a bunch of skilling supplies and items worth alching. Even tho idea is somehow reminder of OSRS I remember somebody was mentioning this to Emps-Scape(Now, Emps-World) way before it came to OSRS. And if I'm correct, as long term player it got amazing feedback with a lot of addons to the idea itself and it was worth trying to make it in. I personally find it this way: The more challenging the game is the more people it attracts even without advertising. Otherwise, easy money on afk skill just to waste on staking or drop parties, not worth time spending or investing effort to even take slayer tasks. As for XP/h, Duradel's tasks can be replaced with rather more profit and less boss tasks and there can always be Kuradal slayer master, requiring 70 slayer 110 combat or something like this. Both RS3 and OSRS content elements are already in game. So suggesting this won't hurt it so much.
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