Critical Hits Explained

Bonus Damage

Rolling a Nat one will cause you to deal 1D4 times the original damage
However if you Roll a Nat 1, You deal no Extra Damage BUT the opponent gets the Stagger Effects causing them to lose their Turn [And giving you a free Combo until you Fail your Strength Check]

Good Aim

It's REALLY hard to dodge a Critical Hit so the only way to counter is by rolling a Nat 1 to Dodge or Block