Potwory 
Sineater Inferniarch
<gallery captionalign="center" mode="nolines">Sineater Inferniarch Artwork.jpg|Official Creature Artwork</gallery>...
Sir Baeloc
It's one of the bosses of Grave Danger Quest....
Sir Leonard
Final boss of Between the Lines Quest....
Sir Leopold
It spawns on the 23rd day of each month, exactly 30 minutes after Server_Save#Server_Save,_Server_Boot,_and_Server_Open.
Raid messages:
Sir Leopold...
Sir Nictros
It is one of the bosses of Grave Danger Quest....
Sir Valorcrest
Spawns with 0-4 Vampires, you will notice FAR more vampires close to the stairs than usual at the Vampire cave when this creature spawns. You can use ...
Sister Hetai
It's one of the minibosses of Kilmaresh Quest, Wanted mission....
Skeleton Elite Warrior
Skeleton Warrior
Slime
Slimes are useful to level because they have relatively low hp and give good experience. With 55 shielding you can Training with slimes successfully. ...
Slug
Can be Tiger Slug by using Slug Drug on it. <gallery captionalign="center" mode="nolines">Slug Artwork.jpg|Official Creature Artwork</gallery>...
Smuggler
Smuggler Baron Silvertoe
Son of Verminor
Sopping Carcass
<gallery captionalign="center" mode="nolines">Oozing Carcass and Sopping Carcass Artwork.jpg|Official Creature Artwork</gallery>...
Sopping Corpus
<gallery captionalign="center" mode="nolines">Oozing Corpus and Sopping Corpus Artwork.jpg|Official Creature Artwork</gallery>...
Sorcerer's Apparition
It only drops a Bag You Desire for players with at least one of Goshnar's Taints. The more taints you have, the higher the chance. The Bag is always d...
Soul of Dragonking Zyrtarch
This is one of the bosses in the Forgotten Knowledge Quest....
Soul-broken Harbinger
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Soul-Broken Harbinger Soul Core