Grandma gives the kids the daggers
Enchanted Daggers are magical items that have the potential to vanquish a vampire with one slash.
Backstory[]
Benny's Grandma had held onto them for safe-keeping until she passed them onto Ethan and Benny to help them battle Jesse and his followers in the movie. One of the daggers were lost by Ethan inadvertantly when he threw one into the heart of a vampire, causing it to explode.