The God Tower Is Coming, I Can Copy the Noble Phantasm

One day at noon, the blood-red sky covered the earth, thousands of giant towers rose from the ground and broke into the sky, and an ancient voice sounded, "The end is coming! Go climb the tower! There are endless treasures in the tower! At the top of the tower is the hope of life!" While everyone is guessing what the end of the world will be, everyone has obtained a unique Noble Phantasm and system, and all of this is to climb the tower! Qin Xiao's Noble Phantasm turned out to be the Magic Book of Masks, and its ability was to transform into other Noble Phantasms, and its ability was only half of the original version? "Why does it feel a bit lagging? Others are all full of power, but I can only use half of it. Wouldn't it be a disadvantage in future fights? I don't know if I can change it in the future." Qin Xiao looked a little helpless.