The Inferno Arena! (For 1.17+)

Made in 1.17 and works well with 1.18 and maybe 1.19.20. This World is an Epic Arena Made With Copper, Lava, Shroomlights, Crying Obsidian, Obsidian and you can see the rest while playing :) And Plz do note the the dream and techno art is not mine. Here's the Website from the thumbnail: https://www.reddit.com/r/Technoblade/comments/jmw3c2/dream_vs_techno_technofanart_accidentally_deleted/

This world allows you to pvp your friends in a fun 100 x 100 arena use a trident or go in creative mode to get the armour you want or need