Swords of Justice.

The Swords of Justice each posses a powerful weapon that is embedded with a piece of their soul.
Terrakion has the Terra Ranger Sword, it is an ancient weapon that can Terra form the earth.
Cobalion has the Grey Cobalt Sword, its an ancient weapon that can control all forms of metal.
Virizion has the Verde Grande Sword, its an ancient weapon that can control all plant life.
Each sword has phenomenal power but when synced  they can use the harmonizing  power of the Earths gravitational pull to stop natural disasters world wide.