

Yet when he and the Death Eaters try to capture Harry as he's being moved to a safe house, Voldemort's temporary wand goes up against Harry's - and loses. "He thinks he's the most powerful wizard so it shouldn't matter whose wand he uses," u/bluelephantz_jj pointed out. After all, wandlore in the Wizarding World franchise is quite complex, but Voldemort has no interest in learning the intricacies of his wand, Harry's, the Elder Wand, or anyone else's.

The overconfidence Voldemort shows in this matter illustrates his personality perfectly. Head of the pure blood Malfoy family, the wand Lucius carried was concealed as the top of his snaked-headed walking stick. "Taking his wand was also a way of humiliating him and exerting his control on him." Additionally, as u/Bluemelein, pointed out, Voldemort simply needed something temporary with the sole purpose of killing Harry. "Lucius kept failing him," u/-HimuraKenshin pointed out in their answer. It's also about punishing the Malfoy family - specifically Lucius. For him, taking Lucius' wand isn't just about obtaining a new weapon easily. This walking stick consists of two parts the wooden stick containing the magic wand of Lucius with the silver snake head. But one must not forget He Who Must Not Be Named's personality.
