Offensive Relics

For base assaults and skirmish, these 4 relic bonuses are the best:

These are the top priority as they make your army stronger and make it easier to conquer bases or win skirmishes.

Some relics give you extra energy when you detroy buildings and while not as good as the above 4, are also useful for base assaults:

Getting relics that boost your rewards from battle are also advisable. Resource Rewards relics give you extra Legion Favour, which is a very valuable resource (it also boosts munitions and power but eventually you will have these in abundance).

Note: Do not confuse Resource Rewards with Resource Production. Resource Rewards gives extra resources on every assault. Resource Production relics only boost munitions and power production (from your base), and are not worthwhile.