From the very first scene of episode 1 and explicitly clarified in episode 49, Yhwach foresaw the exact moment Ichigo would kill him. Jugram channeled that future to him while using The Almighty, but Yhwach’s own arrogance made him disregard it as merely a bad dream rather than a direct premonition of his death. It’s core narrative foreshadowing laid out across the entire forth cour yet you people pay attention to literally nothing🤦🏿