Wizard: Scamming a Demon God

This is a magical world. In this world, there are many magical powers and races. Demon Gods, Evil Gods, Ancient Gods, Demons, elves, and other magical Existences coexist with humanity in this world. Relying on the power granted by them, humanity has gradually ushered in its own era. And among humans, a group of crazy gamblers who are keen on trading with magical Existences has emerged... They declare... Going all-in is a form of wisdom! They firmly believe... There's no child who cries every day, and there's no gambler who loses every day! They are... Legendary Mages! And among the Legendary Mages, Isaac is a special Existence. He doesn't consider himself a gambler, and the reason is simple: not knowing the outcome is gambling, but foreseeing the outcome is called investing! With a 1000% success rate, is that called gambling?