What if instead of gilly weed Harry had showed up to the black lake challenge in muggle scuba gear like “like where’s your advanced magic now bitches? Got me a free fishing knife with this thing”
Imagine if he used muggle items to solve all the challenges? Like, if the first challenge the dragons were susceptible to catnip and he just waltzed in and gave the dragon catnip for the egg and for the maze he just used a GPS to keep track of the mazes paths to win?