The result of any Raid depends on several factors, such as:
- your team power
- the initial position of the Runes on your board (which is always random)
- the type of Heroes you attack with (particularly, their special skills as opposed to enemy Heroes' skills)
- your tactics skills (for example, sometimes it's important to concentrate your attacks on enemies with low health to ensure they can't use their skill against you next turn)
NOTE: The enemy team you see when trying to get revenge via the Raid Log is your opponent's Defense team (not the team they attacked you with). You do not see the team your opponent used to attack, which might be completely different from their Defense Team.