Combination Tactics

With an attack power of 13,500, unless someone puts their whole divinity in Endurance and supports themselves with a tier 2 Divine Strength spell using an Authority of 17,500, they will always receive damage from them. 

This arrangement has made Legion-2's firepower lethal, but it has crippled his survivability. He can only rely on their Divine Shield spell to increase his protection against attacks. 

The extra 2,000 protection from their Authority will come a long way in keeping him alive. But it is nowhere near enough to where it needs to be to defend him from the attacks of strong gods, as any god with 5,000 in strength will be able to kill him with 6 attacks.

So it is not going to be enough if they chance upon a god like Crystal Hoard. That's why they have Legion-1. An Endurance of 8,000 plus a boost of 2,130 from Authority means a god will need to put most of their divinity in Strength and have the assistance of Divine spells to harm him.