The air is fresh with the stench of rotting empires. The citizens of Kyneas yearn escape the yoke of their noble masters. Alliances have been made with vassal states, and newly-formed republics and communist states seek to break the control Kyneas has over world politics. Meanwhile the Red Masters play both sides. New and terrible weapons are made to overcome the monopoly of wizards on war.
...And the Gods are dying.
This the outline of my story. In my world, ever since electricity and power generation have been discovered the arms industry has grown massively in order to overcome the fact that wizards are essentially nukes on legs. During this year thus, the world is currently experiencing WW2-era technology. Basically, I need information on both military tactics in WW2, and the technological difficulties, problems soldiers would have in fighting i.e weapon jamming etc.
Magic
Magic in my world is based on the idea of a war amongst the gods. Dead gods can be absorbed by wizards, and then their powers can be used by the wizard. This has risks, the most prominent being that absorbing the god often leads to the wizard acquiring it's characteristics, and depending on the willpower of the wizard, the wizard's personality can be destroyed entirely. Another risk is that the more power the wizard channels, the greater the effect on his or her body, i.e, the wizard can experience lesions, blinding pain, even rapid cancerous growths if he decides to start trying to bring down a mountain with his mind.
What do you guys think of this magic method? Is it too overpowered? Is it too underpowered?