While playing shroud of the avatar, players and developers use a term called Tier X node. You will also notice different nodes from various resources that will have varying amounts of Success Chance. And each of these will give a different amount of Crafting XP when you harvest them. And this will be different in many of the various scenes. The actual answer to "What exactly IS a Tier 5 harvestable node?" is we don't know. From a Player Facing perspective, we don't actually know. There is however something you can observe, that will however be different for every single person playing the game: The Success Chance when harvesting various nodes. Depending on your level of the base harvesting skill, this success chance value will change, and be completely different for each and every single person playing the game. But there is a sort of baseline set of values you can observe, as a player. If you specifically have all of the base harvesting skills specifically at a level of 100, you then can start to see a pattern emerge. What you will see are various harvesting nodes with the following success chance values: 100%, 99%, 97%, 96% and 93%. You will also receive different amount of Crafting XP for each different one. Harvesting ore nodes in in tier 1/2/3/4/5 scenes you will see the following, and this is my guess at what each tier ore node is: Tier 1 node = 100% Success Chance - 200 XP Tier 2 node = 99% Success Chance - 400 XP Tier 3 node = 97% Success Chance - 800 XP Tier 4 node = 96% Success Chance - 2,000 XP Tier 5 node = 93% Success Chance - 5,000 XP And here is what you will see, every time, when you engage in Overland Map encounters, and happen upon a Plains Encounter (these are Tier 3+ scenes): Gold Veins 3 100%, 0 99%, 3 93% Copper Veins 2 100%, 0 99%, 0 93% Garlic 6 100%, 0 99%, 0 93% Pine Tree 0 100%, 2 99%, 0 93% Maple Tree 0 100%, 2 99%, 0 93% Cotton Plant 0 100%, 2 99%, 0 93% Again, all of the numbers stated above are ONLY if you have all of the base harvesting skills specifically set to 100. So this is basically my best guess when wondering what exactly each of the different tier nodes are. But again, I don't actually know for sure. Hopefully this might be a bit informative for everyone!