Slayers
Three People, Three Ways! Where the Light Leads! (3x19)
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Almayce sends out several creatures looking for the last weapon. Unfortunately, they start to destroy towns, and everything in it's way. Lina and the gang decide to stop it, only to have on of Almayce men, Erulogs show up, attacking them.
In the midst of the fight, Jilas shows up wanting to kill Lina. He reveals his new weapon, a bomb as powerful as a Dragon Slave, and uses it on the town, but not before Lina and the gang could a barrier around themselves.
In the end, the weapon wasn't in the town that they were looking for.