Void Striders
Allows flight and slow fall
36% increased running acceleration
Provides the effects of 
Angel Treads
Provides immunity to lava
Shift-Right Click this item in your inventory to toggle the 
wings
'Ludicrous speed!'
35611 items in total across 39 different materials, gathered through 71 intermediate crafts.
- Void Stridersx1
Moon Walkersx1
Soul of Flightx20
Luminite Barx101 ingredient
Aeolus Bootsx16 ingredients
Armored Shellx3
Twisting Netherx3
Dark Plasmax3
Why the tree changes with your mods
Recipes are registered by the mods you load, so the same item can want different materials in different setups. This tree is computed from a dump of the recipe table for the mod set named above rather than written by hand, which is why you can switch sets and watch the material list move.
Coins are counted separately from materials. Terraria can convert between copper, silver and gold, so treating them as craftable turns a 15 gold cost into 150,000 silver coins and buries everything else.