So now you go to shop by using /shop but there arent that munch usefull stuff so here is a small list. Glowstone,sand,sandstone,red sand,wood,diamond,iron,redstone,gold(to buy all minerals)stone,cobblestone,wool,dyes,skabs,fences,spawn eggs...
ill actually disagree with this post for some of the items. Yes items Sand to buy Wood to sell Redstone to buy No items All minerals fences = you can easily craft these items spawn eggs = get these from vote crate system wool = easily obtainable if you know how to spawn passive mobs on your islands skabs= no clue what this is this will protect the economy of skyblock but still allow members to make some money here and there to buy the supplies they need