Could anybody advise me on this? I got 99 as a skiller and literally have no idea what the best experience rates are

I've got Waterfiends and Abyssal Demons preferred at the moment.

I'm using the highest task master and am maxed if that would make any difference.

Celes drags, airuts, avainsies if you do kree, muspahs, dark beasts for afk okish xp as fast kills and kril for greater demons but can be a very long task, chaos giants too very easy kills for good xp, sorry that's all I can think of atm

So after looking into some stuff i've got the following Preffered/Blocked Stuff

Preferred

Abyssal Demons
Waterfiends
Airuts
Celstial Dragons
Edimmu
Dark Beasts
Elves

Blocked

Desert Strykewyrm
Acheron Mammoths
Nechryaels
Camel Warriors
TzHaar
Grotworms

Is there anything i should swap up?

Celes drags, airuts, avainsies if you do kree, muspahs, dark beasts for afk okish xp as fast kills and kril for greater demons but can be a very long task, chaos giants too very easy kills for good xp, sorry that's all I can think of atm

Do you know what the slayer experience / hour is with Muspahs? I don't mind Greater Demons / Aviansies for GWD but i'd probably avoid 'preferring' them ;P

I used this to help me with my block list

https://docs.google.com/spreadsheets/d/1IhSCK44OTH9ECgw7UhhK84tL52tJQlCc31f6xhX3vbs/edit#gid=0

I've never really tracked the xp for muspahs but I know its good magic xp, Damien (mini nub ) will know more

I don't mind camel warriors or ripper demons, depens if you want to exchange it for xp against drops. If 200m , I'd switch all boring tasks to moneymaker tasks.