Boss guides

Rex Matriarchs Overview

135 days since last updateAs of 2026-11-14 UTC · source history, not game verification.
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Some guides predate Combat Modernization.

Guide versions

Guide illustration ​

Introduction

⬥ The Rex Matriarchs are four dinosaur bosses found on Anachronia

⬥ Each Matriarch has its own attack style, weakness and mechanics

⬥ While the Matriarchs share a boss instance, only 3/4 share an arena

‎ ‎ ‎ ‎• Osseous' arena is accessed via teleportation device near the entrance, only after completion of the Osseous Rex quest

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The 4 Matriarchs

orikalka Orikalka

⬥ Primarily attacks with melee

⬥ Vulnerable to magic (+27% hit chance with fire spells)

rathis Rathis

⬥ Primarily attacks with range and poisonicon

⬥ Vulnerable to melee (+27% hit chance with stab)

pthentraken Pthentraken

⬥ Primarily attacks with magic

⬥ Vulnerable to range (+27% hit chance with arrows)

osseoushead Osseous

⬥ Primarily attacks with ranged

⬥ Vulnerable to necromancy

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⬥ Basic Guides & Mechanics

‎ ‎ ‎ ‎• Referenced guide unavailable in this snapshot

‎ ‎ ‎ ‎• Referenced guide unavailable in this snapshot

‎ ‎ ‎ ‎• Referenced guide unavailable in this snapshot

‎ ‎ ‎ ‎• Osseous Basic

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⬥ Rotations

‎ ‎ ‎ ‎• Referenced guide unavailable in this snapshot

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⬥ AFK & Low-effort

‎ ‎ ‎ ‎• AFK Orikalka

‎ ‎ ‎ ‎• AFK Rathis

‎ ‎ ‎ ‎• AFK Osseous

‎ ‎ ‎ ‎• Referenced guide unavailable in this snapshot

‎ ‎ ‎ ‎• Low Effort Pthentraken

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Source & licence

By PvME contributors under CC BY-NC-SA 4.0. Navigation and typography adapted. Unavailable source links and contributor names are labelled. Embedded media has separate rights.

Copied on 10 Nov 2026. Not rechecked against the current game.

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