What is your suggestion?: The Nechryarch is the superior version of the Nechryael while doing slayer. When a Nechryarch spawns on task in the Catacombs and is killed, it does not drop the 3 Dark totem pieces. My suggestion is to make it drop all 3 like all the other superiors in the Catacombs do.
I would also suggest to check out if there are any other superior types in the Catacombs that do not have this drop coded as well. Nechryach is the only one I have noticed so far as I have done a lot of them for training slayer on this account.
Is this in OSRS?: Yes/No. In OSRS they drop 1 piece guaranteed, on Alora all of the other superiors I have encountered drop all 3.
Has this suggestion been accepted already?: Don't think so?
How would this benefit Alora?: Will keep the game more consistent and when people are spending points to unlock the superior versions and are lucky to get one in the Catacombs, they get a full totem for Skotizo like you would with the other superior versions in Alora.