Monsters vs Hogwarts

One day, a mysterious force draws the following onto the grounds of Hogwarts:

Jason Voorhees(Composite)
Michael Myers(Original version)
Michael Myers(New version)
Freddy Krueger
Wolf the Predator
10 Xenomorphs
100 Gremlins
Every version of Dracula

Hogwarts sees them all coming from across the lake.

The limit is 3 vs. 3.

Armies and groups are allowed, but only from a specific film and those who pertain to each other.

10 Random characters, or 100 of a certain kind, are not allowed.

Read the rules.