How do I craft Shroomite Armor?

I have gotten to hardcore mode, and this is supposedly the best ranger armor. How do I create it?

1 Answer

The wiki search should have been your first objective before asking.

The only material needed for its craft is Shroomite bar

Shroomite bar is obtained by mixing, on a Autohammer (sold by the Truffle NPC), a Chlorophyte bar and glowing mushrooms (15 for each bar, so you'll need a lot of them)
Chlorophyte bars, if you haven't obtained it yet, are made of Chlorophyte ores which are harvestable by using at least the hallowed pickaxe.

Crafting a full set with a single helmet requires 54 Shroomite Bars (or 810 Glowing Mushrooms and 324 Chlorophyte Ore). A full set with all three helmets requires 1170 Glowing Mushrooms and 468 Chlorophyte Ore.