Originally posted by XSUPREMEXSKILLZ
The Sith Emperor (Star Wars: The Old Republic) cleanses planet Ziost of all life.
Not as cool as this though:
🙁
The Grace (Doctor Who) are a race of pan-dimensional beings who created the Key of Time, an artifact that can just about infinitely warp time and space:
The woman explains that the Key to Time was also built by the Grace. It’s a perfect cube which maintains the equilibrium of time itself. When its six crystal segments are assembled, it can stop and start the Universe, re-write matter and change the states of quanta to restore balance.