There are a lot of other sources of Enhancement Stones in NNK:CW, but the most notable alternate sources are:
Field & World Bosses Kingdom Activities Exchange Shops And Events
The three types of Enhancement Stones are Common, Uncommon, and Superior. This guide will show you which sources drop which type of Enhancement Stones so you can farm more efficiently.
Source #1: Equipment Salvaging (Best Source)
Possible Drops: Common Enhancement Stones & Uncommon Enhancement Stones Salvaging the spare 1★, 2★, and 3★ equipment you get from either equipment crafting or monster farming gives you a ton of Enhancement Stones. Do note that you will not get a fixed amount of Enhancement Stones every time you salvage, as this process is completely RNG-dependent. You also cannot get Superior Enhancement Stones here, but it remains the best source if you want to farm Common and Uncommon Enhancement Stones exclusively. TIP: Do not salvage any 4★ Equipment. Doing so doesn’t give you any Enhancement Stones or any other valuable materials, so it would just be a complete waste of equipment.
Source #2: Field Bosses & World Bosses
Possible Drops: Common Enhancement Stones, Uncommon Enhancement Stones, & Superior Enhancement Stones This source is arguably tied with Equipment Salvaging as the best source of Enhancement Stones in the game — but there is a catch. Field Bosses and World Bosses are only viable if you hunt them at least once every day. This can be a bit problematic, since you can only access them at four different timeframes within the day. Regardless, I still recommend hunting them down consistently because they are by far the best source of F2P Superior Enhancement Stones in the game. TIP: To make the Field Boss & World Boss hunts much easier and faster, try joining a party before going in — especially for Field Bosses. Using a computer instead of a mobile device for hunting Field Bosses is also recommended, as it reduces the downtime when switching from channel to channel.
Source #3: Kingdom Facilities & Activities
Possible Drops: Common Enhancement Stones, Uncommon Enhancement Stones, & Superior Enhancement Stones One of the many perks of joining a Kingdom is having access to several Kingdom facilities and activities that allow you to farm Enhancement Stones:
Kingdom Dungeon Kingdom Defense Auction House General Store (Lords only)
Kingdom Dungeon and Kingdom Defense give you chests that drop Enhancement Stones upon completion— along with more chests you can bid for in the Auction House. For Kingdom Lords, you can buy a set amount of Enhancement Stones directly in the General Store per week. Lucky you! TIP: You can also visit the Capital and buy Enhancement Stones from the General Store for Gilders. They’re only available for a limited time, so don’t miss them once the Capital winner has been announced!
Source #4: Medal Exchange Shops
Possible Drops: Uncommon Enhancement Stones & Superior Enhancement Stones There are two Medal Exchange Shops where you can craft Enhancement Stones out of lower-tier ones — the Honor Medal Exchange Shop and the Purification Medal Exchange Shop. Here are the materials and the number of medals you need to craft each type of Enhancement Stone that are available in both Medal Exchange Shops:
Source #5: Events
Possible Drops: Common Enhancement Stones, Uncommon Enhancement Stones, & Superior Enhancement Stones You can get a large variety of materials and resources in most time-limited Events — including all three kinds of Enhancement Stones. Superior Enhancement Stones are given away quite rarely, but they do occasionally show up as Event rewards along with plenty of Uncommon and Common Enhancement Stones. TIP: If you want to tune in for all upcoming or ongoing Events and check out their details, feel free to check out Ni No Kuni: Cross World’s official Discord Server!