Unofficial fan reference · game data patch 9.0 (Sep 24, 2026)
TW Database
Merwyrm unit card

Merwyrm

Monster· Colossal Monster· Tier 5· 1 model at Ultra size

Health

12,600

top 16% of class

Armour

70

bottom 45% of class

Leadership

70

bottom 46% of class

Speed

75

top 48% of class

Melee attack

59

top 25% of class

Melee defence

38

top 49% of class

Weapon strength

275 base + 425 armour-piercing, +30 vs large

700

top 7% of class

Charge bonus

42

bottom 43% of class

Attributes

  • Causes Fear

    This unit frightens all enemy units, reducing their leadership when nearby. It is also immune to fear. Fear penalties do not stack.

  • Causes Terror

    This unit can cause terror, making its melee target rout for a short time. Units that cause terror are immune to terror and fear themselves.

  • Wallbreaker

    Allows the unit to attack and destroy walls in melee. This attribute also adds a +50% damage multiplier against buildings.

Abilities

  • Abyssal CloakAugment · +20 Missile Block Chance, -4 Leadershippassive
  • WoundsHex · -10% Speed, -20% Armour-Piercing Weapon Damage…passive
  • RegenerationRegeneration · -20 Weakness to Fire Damage, Replenishes hit points of combatantspassive

Who can field it

  • Lothern

The game also has 1 summoned or scripted copy of this unit that players don't recruit directly (wh3_dlc27_hef_mon_merwyrm_summoned).

Where these numbers come from

Read from the game's database tables for patch 9.0 (main_units, land_units, battle_entities, melee_weapons, projectiles…) as published in the WH3-Dump export (commit 8a4f7e64). Formulas that turn table values into card values are checked against known units before they are shown — how we verify.