Garagrim Ironfist, War-mourner of Karak Kadrin

All Slayers have an uncanny ability which makes them particularly effective against especially tough opponents. When rolling to wound, a Slayer's Strength, including any modifiers for weapons (eg, a Great Axe), is increased until it is equal to the Toughness of his opponent, up to a maximum of Strength 6.
If the opponent's Toughness is lower than the Slayer's Strength, including any modifiers for weapons, the Slayer does not receive any Strength bonus.
For example, a Slayer armed with a Great Axe (S5) is fighting a Dragon (T6): normally he needs a 5+ to wound, but because of the Slayer skill his Strength is increased to 6 and he therefore wounds on a 4+.
Note that the armour save modifier is calculated at the modified Strength score, in this case it is -3 for a Strength 6 hit.
If the Slayer were fighting a weedy Goblin (13). he would use his normal Strength of 5 and would therefore wound the Goblin on a 2+, with an armour save modifier of -2.

Giant Slayers in an army led by Garagrim may be given a single weapon rune worth no more than 25 points. The Rule of Pride still applies to these weapons.

Remember that a model with a rune axe loses the normal benefits of a great weapon or additional hand weapon.