Ossiarch Bonereapers Mortis Reapers: Rules & Tactics Guide

By GUNNZO | Published: 2026-10-31

Category: How-to Guides

Master the Mortis Reapers for Age of Sigmar with this tactical guide covering deployment, combat rules, and painting tips to dominate the tabletop.

Quick answer

Focus on positioning Mortis Reapers to leverage their skeletal resilience and melee strength while supporting them with ranged units to cover their advance.

Understanding the Mortis Reapers' Role

Mortis Reapers are grim skeletal warriors that excel in close combat. Their strength lies in durability and numbers, making them ideal for holding objectives or breaking enemy lines. However, they lack ranged attacks, so you must plan their approach carefully.

In Age of Sigmar, these units benefit from faction synergies within the Ossiarch Bonereapers army. Pair them with support heroes or artillery to neutralize threats before they reach your lines.

Common Mistakes to Avoid

Don't rush Mortis Reapers into open ground without cover—they are vulnerable to concentrated ranged fire. Always move them from terrain piece to terrain piece.

Avoid splitting them into too many small groups. Their strength comes from mass attacks; a single Reaper is easily picked off.

Step-by-Step Tactical Deployment Guide

Assemble and Base the Unit: Follow the kit instructions to build the Mortis Reapers. Use plastic glue for permanent assembly, and ensure all models are on the correct base size for Age of Sigmar rules. Check that each model's base matches the unit card dimensions to avoid movement disputes during play.
Plan the Approach Route: Identify two or three terrain features (ruins, forests, hills) that provide cover between your deployment zone and the primary objective. Mortis Reapers move best when they can advance from cover to cover. If the board lacks cover, consider using a screen of cheaper units to absorb fire while the Reapers advance.
Support with Ranged Elements: Deploy at least one ranged unit (e.g., artillery or a hero with ranged attacks) behind the Mortis Reapers. This unit will suppress enemy shooters while the Reapers close the distance. Keep the support unit within 12 inches of the Reapers to maintain faction command range bonuses.
Engage in Melee: Once within charge range, commit the Mortis Reapers to a full assault. Use their high melee attack stat to overwhelm a single enemy unit rather than spreading attacks. Focus on the enemy's leader or strongest melee unit first. After the charge, expect to lose one or two models—plan to have a reserve unit ready to exploit the gap.
Paint for Tabletop Visibility: Paint the bone armor with a bone-white base, then shade with a brown wash for depth. Add a contrasting color (e.g., red or blue) on weapons to easily identify unit positions on a crowded board. Use a matte varnish to reduce glare under gaming lights and make the models easier to see from a distance.

Product Facts

Warhammer Age of Sigmar: Ossiarch Bonereapers: Mortis Reapers: This Warhammer Age of Sigmar set from Games Workshop brings the Ossiarch Bonereapers to your tabletop with the Mortis Reapers. Designed for the miniature wargame, this kit allows you to assemble and paint these grim skeletal warriors for your collection or battlefield. Having the official kit ensures you get the correct components and rules reference for tournament-legal play and consistent model quality.
Warhammer Age of Sigmar: Ossiarch Bonereapers: Mortis Reapers