Quick explanation of all types of raids.
Normal Raid
Each player in the raid has his/her own stats.
Super Raid
Initiating a super raid will let all participating members have the same attributes (attack, defense, health, damage and damage reduction buffs) as the raid initiators in the raid. Only 2 super raids can be activated at the same time.
City Raid
Initiating a city raid temporarily turns the attributes (attack, defense, health, damage, and damage reduction buffs) of crew members who joined this raid to the same stats as the raid initiator. However, there’s a limit on the number of city raids that can only be initiated within the event, which is fixed and only the respective commanders can initiate them.