I won’t be surprised if I wake up and find this is a very bad idea, especially since I’m hungry and tired.
Have you ever went to go get someones treasure but find out they have concrete, end stone or andesite? You have gold to buy a pick, but you cant go to either two bases to buy a pick without dying. What if you could prepare for this? A spawn egg, buyable in the shop that is essentially a portable shop.
Once you spawn in your shopkeeper, (able to be spawned anywhere on the map) you can buy stuff from it. Obviously it wouldnt be there forever, maybe disappear after 1-2 minutes. This would change the meta in TW. I think it should cost no more than 20 diamonds, or around 10 emeralds, This could be really good if you have extra diamonds and want to be prepared going into battle.