The damage of weak hits is reduced by 30%, including all bonuses, according to the official Plarium description. Damage and chances will be calculated in a default way. These features don’t work if both opponents have the same affinity or if one of them has void affinity. The chance to deal a Critical Hit is reduced by 15%.A Weak Hit cannot be a critical hit and cannot place any debuffs on the opponent

There is a 35% chance that the hit will be a Weak Hit.Damage from the attack is reduced by 20%.There is a 15% greater chance to deal a Critical Hit against targets with a weaker affinity.

This chance is calculated for each hit separately

There is a 30% chance that the hit will be a Strong Hit.

When you attack with a stronger affinity: The developers draw these dependencies as follows.

Void (purple) is neutral to other affinities.

Each affinity, except Void, is weaker than the previous but stronger than the next. Each champion and boss in the game has an affinity. There are 4 different affinities in RAID: Magic, Spirit, Forceand Void.

Raid shadow legends affinity explained