One of the magical totems given to the heroes by the Dungeon Master is a javelin, and this is received by Diana who inherits the role of acrobat.
The javelin appears to be wooden but glows green.
Although called a javelin it does not have a pointed head and is blunt like a staff, but despite this it is just as aerodynamic as a spear.
Diana can mentally will the javelin to shrink down to a few inches so that it can be stored in her belt or expand up to six foot.
The javelin seems to be robust but it has been snapped in half before in the jaws of a dragon turtle but was magically repaired by Diana who simply fused the two parts by touching them together. When the javelin broke she did not seemed bothered or pay particular attention to connecting the two parts so possibly this has happened before in an off-screen adventure or ownership of this totem gave her an innate knowledge of how to repair the javelin.
Diana normally uses the javelin as a vaulting pole or quarterstaff when faced with enemies but has developed a stunt where she whirls it impossibly fast like a propeller to act as a shield or to shred weapons such as spears. She has also thrown a whirling javelin and had it ricochet off walls like a spinning top. When thrown it can return back to her like a boomerang. The javelin can also be used defensively to parry or deflect bolts of energy.
The Series Bible states that ownership of the javelin augments Diana's muscle and agility but if she is without it for more than thirty seconds then she loses this augmentation.