This sword is from the last raid boss from the newest World of Warcraft expansion. I loved that dungeon so much that I designed his sword. this sword has cutouts intended for internal LED lights. these will light up the runes and center gem when assembled correctly.
You will also need red translucent filament. however, i would guess clear filament would work too since you'll be using red LEDs.

I got the Red LED lights from LighthouseLEDs
https://lighthouseleds.com/5mm-9v-pre-wired-led-red-ultra-bright-15-000-mcd.html
They run on a regular 9v battery. You'll also need the connector clip part and some soldering
I got the clips for $0.50 each at amazon
https://www.amazon.com/dp/B07XC13DH6/ref=syn_sd_onsite_desktop_44?psc=1&uh_it=0b4de5d217e35e0626ce52c0ede3280d_CT&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyNjhIRjJGSVlVMkhCJmVuY3J5cHRlZElkPUEwOTI4NDYzM0FEUTFORjE0TlVLOCZlbmNyeXB0ZWRBZElkPUEwNzQ3OTc0MlRGTTNSTUlXWUE3MyZ3aWRnZXROYW1lPXNkX29uc2l0ZV9kZXNrdG9wJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
The filament was also purchased at amazon
https://www.amazon.com/gp/product/B01M3PKKVC/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

You'll want to print with at least 50% infill. the majority of the blade is tin enough to not need any infill at all which means it may be a little weak. also, to balance the sword out, increasing the infill will primarily influence the hilt of the sword, making the back end heavier.

I'll upload my pictures when I'm finished

Creality

Ender 3

Doesn't Matter

Yes

0.2mm

55%