you are what's wrong with this game.

See for me I am playing seriously in G1 and JW in fantasy.
Since I got to have more tokens thats why I am just building armors in Fantasy 2 and taking daily bonus so i get some achievements.
No wars as they give damage is not advisable they give exp. also to you units

And for the relic, They are the game changer.
There was 1 alliance in Galaxy 1 earlier (i dont remember the era no.) It was rank 4 and had no crystals and was the sub of rank 1 alliance.
That alliance just recruited units and expanded gates and radars.
When the relics were dropped that alliance got 7 of them from ADMINs control.
And became an independent alliance and won the era too.
So dont attack a relic alone is advisable but not attacking a relic ever is not advisable in my opinion.