Guild Wars 2

Those are like the hands of Grenth’s servants reaching out at the necromancer from the afterlife, begging for his attention.

Abaddon’s army came from the fact he had ahold of the forge of creation (I think it was called) which allowed him to make his demons. As for the Elder Dragon’s their power is more of a primal thing, it’s like fighting the building blocks of the world. Don’t forget what a god is, has not really been defined as the Charr (I think it was them atleast) saw the human gods as just really strong humans. So there’s not really a clear answer to this.