From Truth or Dare to a Prank War (A HILARIOUS HP Fanfic)!

Harry killed Voldemort in the Trio's 5th Year. Now they are back for their 6th year, to have fun. So Hermione introduces a game called Truth or Dare to the Gryffindors and Luna. But soon, the Slytherins join upon Harry's wishes. Unfortunately a trick is pulled on the staff and then they demand a Prank War along with the Ravenclaws and Hufflepuffs. Who will win? Full summary inside!