Monsters struck by a melee (not missile or spell) attack under the influence of this rune lose all their Shock immunity/resistance. This loss of Shock resistance applies to attacks by anyone, not just the user of this rune.
Ranger
Like all +5 weapons, the DM will add +5 to the AC hit when using this weapon but the damage bonus has already been factored into the damage wheel.
This hammer is permanently imbued with the smiting effect. This means that when used in combat, a critical hit can be scored if the player slides a natural 19 or 20. This weapon is not subject to further effect from Oil of Smiting.
Anytime the wearer successfully attacks with a Thrall weapon (a weapon with the word “Thrall” in its name), the attack deals +1 Damage.
Anytime the wearer attacks with a Thrall weapon (a weapon with the word “Thrall” in its name), the attack gains +1 To Hit.