Attacking and wiping out enemies
Sailor Pluto used the Garnet Rod for Dead Scream, Abracadabra Pon, Time Stop, and Dark Dome Close. She also had access to the Space-time rod in civilian form. This particular talisman and weapon seems to have a mind and will of its own; as it had automatically acted on its own accord and saved its rightful owner from having her Pure Heart Crystal snatched by evil flowers.
In the mixx manga it was called the Garnet Scepter. In the DiC English dub, it was called The Time Wand, and in the Cloverway dub it was called The Time Rod. In the Viz dub it retains it name.