Solar hammer

The Light-Generating Hammer is a mysterious warhammer that, whenever is hitted, touched or comes in contact with a surface, generate a burst of light energy.

History
The story and origin of the artifact are unknown, however it was somehow recovered by Superman in one of his adventure and he would later store it in the Fortress of Solitude amongst many other artifacts and trophies.

When Oliver Queen, Barry Allen and Cisco Ramon, respectively turned into a couple of criminal nicknamed Trigger Twins and a mob boss by Deegan's reality changes, visited the Fortress in order to ask for Clark's help, Cisco touched the hammer despite Lois and Clark telling him not to and, after he does so, a dazzling explosion of light is emitted from the item. Later, as Lois reached Superman in the final battle with Deegan, she carried the weapon and used it to attack the Doctor momentarily blinding him.