Armour runes can only be inscribed upon armour. If you give a model an Armour rune, it is inscribed upon the armour that model is equipped with. A model cannot have more than three Armour runes, even if it carries additional equipment such as a shield.
The Master Rune of Adamant makes flesh harder than granite and more impervious than steel.
A model wearing armour inscribed with the Master Rune of Adamant has a Toughness characteristic of 10. This rune cannot be combined with any other Armour runes.
In its purest form, Gromril holds runes better than any other substance in all the world.
A model wearing armour inscribed with the Master Rune of Gromril has an armour value of 2+, which cannot be improved in any way.
Worked into suits of armour, the potent Rune of Iron increases the durability of the wearer.
A model wearing armour inscribed with a Rune of Iron has +1 Wound on its profile.
Runes of Fortitude turn flesh to iron and turn aside the enemy's blades with ease.
For each Rune of Fortitude inscribed upon their armour, a model has a +1 modifier to its Toughness characteristic (to a maximum of 10).
The Rune of Preservation was first struck to counter the decapitating blows of Elven swordmasters.
A model wearing armour inscribed with a Rune of Preservation is immune to both the Killing Blow and Multiple Wounds (X) special rules. If the wearer suffers an unsaved wound from an attack with either of these special rules, they lose a single Wound.
In ages past, entire regiments would march to war bearing shields struck with the Runes of Shielding.
A model wearing armour inscribed with a single Rune of Shielding has a 6+ Ward save against any wounds suffered. For each additional Rune of Shielding, this Ward save is improved by 1.
A simple but brittle rune, the Rune of Stone is the first rune taught to apprentice runesmiths.
Single use. For each Rune of Stone inscribed upon their armour, a model may re-roll a single failed Armour Save roll.