I, Slughorn, Wield the Hammer and Slay Chaos.

A three-hundred-year-old Astartes veteran, his soul has penetrated the world of Harry Potter. Burne Slughorn, in his previous life, cut down 130,000 demons in the subspace, and stabbed through the heart of Angron, the Primarch of the Ascending Demon. When he opened his eyes in this life, he became the grandnephew of the Potions Professor at Hogwarts, only three years old. The werewolf Fenrir Greyback wants to bite off the pure-blood family line? Bourne transformed into a three-meter Astartes on the spot and pulled out the wolf's head with his bare hands, using his spine as a pendant. Horace was so frightened that he took out the Wolfsbane potion. Dumbledore circled it three times and confirmed that he was born a Magus and the direction of transformation was to be a Space Marine. From then on, the style of the magical world changed dramatically. When other little wizards played Quidditch, he dismantled a chain saw and replaced it with a chain sword; when others boiled a potion of good fortune, he threw ceramic powder into the crucible. Lucius Malfoy came to ask for friendship: "Good nephew, please take care of my Draco." Bourne nodded: OK, first teach him how to load the bolter. Voldemort resurrected? Death Eaters gathering? Bourne wiped his power sword and sneered: I even slaughtered half a city of subspace demons. How many times can you chop me with a soul weapon like yours? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.