When you strike a blow, it's always dead on target. Nobody can stop it. And certainly not your enemy. That's for sure!
Increases your accuracy
to 100% significantly.
Untouchable negates Implacable. Two brutes were pitted against each other, one with Implacable and one with Untouchable. The one with Implacable happened to roll bumps, a common mace-like weapon that has the worst accuracy in the game (other than the stone hammer; or "axe" as it's referred to).
The one with Implacable did not hit 100% like the specialty implies; due to the defending brute having Untouchable and Bumps being a highly innaccurate weapon to begin with.