Gauntlet of Rassilon

Omega's Gauntlet was a weapon used by Lord President of the Time Lords, Rassilon.

History
Rassilon used the glove to disintegrate a Time Lady when she told him it might be better that the Time Lords died. Along with other Time Lords, Rassilon escaped the Time Lock and travelled to Earth. He used the gauntlet to destroy facial template set upon the humans. He then also attempted to kill both the Master and the Tenth Doctor, but failed to kill either. (TV: The End of Time)

Gaunlet one of the artefacts of omega lock in omega arsenal rassilon modified it to end time itself