Tsukumogami Physiology User with this ability either is or can transform into an Tsukumogami, concept generally understood to be applied to virtually any object, “that has reached their 100th birthday and thus become alive and self-aware,” though even this broad definition is not without its controversy. Although many tsukumogami are able to transform into animate, even humanoid form, others are limited to manifesting an illusory replication (if one that has temporary physical form). Their personalities can range from harmless and friendly beings to horrifying and vengeful spirits, depending on how they were treated and used. You were once an inanimate object that upon reaching its 100th birthday grew sentience and the ability to turn into a human form, depending on which object you were you are capable of calling features of it back for combat purposes, example, if you were a dumbbell you could transform parts of your body into a heavier substance, or if you were a sword of some sort you could turn your arm into a blade, or rather a multitude of.