Category idea: Alphabet%.

All letters of the english alphabet (localized could also work in a sub-category) must be used in at least 1 item in your inventory.

Set-seed allowed

Cool idea. Something similar I think would be neat is there needs to be an item that starts with each letter of the alphabet in your inventory, instead of just somewhere in the name. Set seed would be awesome for that kind of thing

sounds fun

mods add this now

This could get very interesting, because you would have to work out what the best language is, and possibly switch languages mid run

I think the only way to get an item with Z at the start is to get a zombie head, which needs a charged creeper and therefore needs thunder, so this run would have a LOT of RNG

Also there's no way to get X afaik

What if you could just rename an item into the English alphabet through an anvil? Would this even count?

Speaking of rare letters such as X, Y, Z, Q, there are such items as Bucket of Axolotl, Red Dye, Podzol and Quick Charge enchantment books