Original Post — Direct link

The achievement as seen in the screenshot needs updating. "The Raptor" has not been added to this list.

https://preview.redd.it/ts6vfxmayeta1.png?width=477&format=png&auto=webp&v=enabled&s=f32c8806cc20ff64b7ed93e638786eba52659d05

External link →
over 1 year ago - /u/JagexCamel - Direct link

The Raptor not appearing here is deliberate. While he functionally acts as a slayer master in terms of assigning creatures to kill, when it comes to lore he is not a slayer master.

over 1 year ago - /u/JagexCamel - Direct link

Originally posted by Mr__Perfect_

Is there a lore reason why not? (Unless it was the bit in the quest about him saying no after we shoehorned him into the role)

If you talk to The Raptor in game and choose the 'Let's talk about you' chat option they will explain why they are not a slayer master.

In terms of lore. I think each of the slayer masters are a member of the 'Order of the slayer masters' of which The Raptor is not interested in being part of.