Tome Summons: Starting with the Raven of Doom

Time travel and become a waste material? I'm wearing this vest. When everyone summons the contract beast, my doom raven is already playing with the script of all living beings. So I formed the most "alluring" team in history: the Soul-Eating Vine Queen controlled the field, the elves healed, the Void Walker beheaded, the Holy Light Phoenix and Thunder Calamity destroyed the battlefield, and the Dragonborn Queen crushed everything. After sweeping across the continent, the Ancient God of Void could no longer sit still. He angrily accused me of cheating. I looked back at them behind me, who were gearing up, and at the crow on my shoulder who was pretending to be stupid. "Is it too late to admit defeat now...?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.