Your GM account will come with a wand based upon it’s power level. This is the primary tool that GMs use to manage the game world. At level 5, you should find an ebony wand in your inventory. You may need to logout of the game world completely for it to appear in your inventory.
For more information on GM Powers, please see Jberg's excellent guide on the official forums:
[http://forum.wurmonline.com/index.php?/topic/132225-jbergs-quick-start-guidecheat-sheet-to-being-an-archgm/ Jbergs Quick Start Guide/Cheat Sheet to being an (ARCH)GM]