That is it! You positively need someone dead! No, you don't call a GM! You don't call a wizard! You don't call a dozen archers! You get a big damn two-handed sword to put him down on the ground for good!
The Scottish claymore(don't mix it with the basket-hilt) is the first large weapon design I post. This is for advanced fighters only - standing at 135 sm, the weapon can be dangerous in inexperienced hands. Get good with it though, and you'll love it. Well, killing seven with one strike might be a bit hard - my record was 3 at once.
BUDGET - about 15-20$ - the weapon itself is almost twice the size of a normal sword. You'd need a bit more of everything.
MATERIALS: Polipropilene pipe F32 about 1.20m long (optional - piece of pipe size F20) Foam, tapes, plastic bottles, leather or substitute to wrap the handle. Something for the counter weight.
This is again a recycled old weapon, actually from my first weapon ever made years ago.
As such, it already had its own special counterweight made from a big bolt, a metal water valve and some nuts and rivets for extra weight.
Here's the optional part with the 2nd pipe piece. The F20 can just barely fit inside the F32, and will make it less springy(also it will again help with the balancing) You don't have to do it if you think the weapon becomes too heavy.
After the 2nd pipe is fitted inside, a basic measuring is done to decide where to start fitting the guard.
To ensure it stays where its supposed to, I actually nailed it to the pipe(thus securing the twin pipes together as well)
Finally the claymore is done. Here you can see it again in full size and in comparison to a 1 handed sabre.
I tried again to follow the model of a real claymore, but alas - boffer limitations can be annoying sometimes.