Abilities often have a Strength chance to apply an additional effect on top of base effects of an ability to the target Unit . Where 1 Strength equals to 10% to succeed (so 4 Strength equals to 40%). Strength checks always have a Damage Channel associated with them, indicated by the icon. Each unit targeted by an ability with a strength check will roll separately for the check. Upon success, the target unit suffers the additional effect, upon failure, no additional effect is suffered unless stated otherwise. Strength chances can be influenced by Unit Tier, Resistances and Weaknesses to the Strength check's Damage Channel and other sources such as Unit Mods or Visit Sites.
Final Strength chance is calculated through the following formula in percentage:
Final Strength chance = (Strength x 10) x 0.9^((Unit Tier - 1) x 2 + Resistance - Weakness)