Wings go by tiers in this game. so in short of the actual wing names, the community calls it wing1/2/3 and so on.

Disregarded on the server.

Wing 2 is what you start with as soon as you create your character. it will be in your inventory. Furthermore you would require a wing 2 as an ingredient to craft wing3. You might lose it in the process! So be wary, use your GPs to buy another set of wing 2 from the xshop for crafting purposes.

Wing 3 is crafted at the Chaos Goblin using the classic two-stage recipe - but on FanaticMU the output is upgraded: a success produces a random class Wing 3 at +13 with Skill, Luck and full excellent options. Full recipes, materials and the honest success rates are on the Crafting page.

Wing 4 exists. It drops only from Uber Kundun on the hardest difficulty, at the same +13 full-option convention. That is all this page will tell you.