Unobtainium

Unobtainium is a white fantasy metal obtained from Unobtainitite.

It is used for tools and armour. The tools and armour are (Pretty OP) given automatic fortune, immense strength, speed and regeneration, flight, nie invulnerability. But if worn for too long will give mass amounts of nausea.

Unobtainium is any fictional, extremely rare, costly or impossible material that will fit any purpose, no matter what for example, a pulley made of unobtainium might be massless and frictionless; however, if used in a nuclear rocket, unobtainium would be light, strong at high temperatures, and resistant to radiation damage.

Unobtanium is classified as a cognitively imprintable material, in that it will shift it's properties to meet any particular task - the material is a (in some ways literal) blank slate which can be affected by cognitive functions of whoever uses it. The issue with this is that when used in armour, it conflicts with the cognitive functions of other beings around the user, and over time, becomes a negative influence on the user, unless removed for long periods of time and left to "cooldown". Sometimes, when used in conjunction with other materials, unobtanium will permanently shift to these "preferred" materials.