Beasts - The RuneScape Wiki

The Beasts tab contains an overview of all non-quest repeatable bosses in-game, counting how many you've killed and how fast you killed them. It also contains a detailed overview of how many times you killed the most popular slayer creatures. It caps at 60,000 kills. Starting from 2 November 2015, after the cap has been reached, it can be reset to 0 to gain 1 prestige for that monster. This has a cap of 255, allowing 15,360,000 kills to be recorded. The Quick Chat option has a cap of 16 prestige before displaying LOTS!, allowing 1,020,000 kills to be recorded.

Elite monster - The RuneScape Wiki

Corporeal Puppy - The RuneScape Wiki

Revenant dark beast - The RuneScape Wiki

Builder (The Bird and the Beast) - The RuneScape Wiki

The Bird and the Beast - The RuneScape Wiki

Spirit Beast - The RuneScape Wiki

Corporeal Beast/Strategies, Old School RuneScape Wiki

The Ambassador - The RuneScape Wiki

If we have an updated model for Dark Beasts (Pet), why the slayer monster itself is not updated? : r/runescape

Belly of the Beast - The RuneScape Wiki

Croesus - The RuneScape Wiki

Shaeded Beast - OSRS Wiki

Lava beast, Old School RuneScape Wiki

Ganodermic beast - The RuneScape Wiki