So you know how in YuGiOh the villain is a CEO who invented a game and all the rules for that game, then gets very smug when he manages to beat his enemies, and also gets mad when someone subverts him?
Basically God created the universe as well as his enemies, and he’s going to fight a giant epic holy war, which, like The Rock, he contractually cannot lose or else the whole universe collapses. This means the war is the equivalent of those medieval roleplaying events where the prince hunts his servants and the only people who suffer are the people he rules.
But before this can happen, a bunch of things, that no one is allowed to know about definitively, must occur. Then Jesus comes down, kills all the sinners and nonbelievers, saves the Christians, and they fight Satan and his army. Israel will be the main base camp.
It’s basically a divine, celestial table top role playing game between God and his crew and Satan