One Cut to kill...
The {Heavy Armor} didn't provide Cain a simple addition to his stats, as it wasn't as simple as that.
The {Heavy Armor}, just like its name, was just that.
Heavy...
The force behind an attack is the product acceleration of the individual or object, and the mass of said object. Attack power was the metric the system used to calculate this product.
Strength, combined with agility, combined with control would give rise to the difficult-to-calibrate metric called Attack power. The {Heavy Armor} simply boosted the value of this by a few times, making it very powerful and effective.
Its major drawback, however, was its immense weight, which greatly reduced its user's speed and agility. It also put more strain on the user, causing increased consumption of stamina.
Primarily consisting of three pieces, a shoulder and arm piece, a leg piece, and a chest piece, it was as close to innovation as Cain had ever gotten in his entire life...