Muck

This is really short, won't even take you a minute!

• Create a new world
• Use seed "931098003"
• After spawning, turn left till you see a blue chest
• Go to the blue chest and there will be a small computer to the right of it (On the floor)
• Press the "E" key while looking at him and wishlist Karlson

Here is a short video I made if you want to take a look at it:
https://www.youtube.com/watch?v=FTv9m3M5Eh8

Use the seed: -1991483181 (you have to put in the minus sign)
The Night Blade will be in a chest in a cave near the lake
Bonus: In the same seed, there will be a big chunk statue near spawn