Crafting using Block of Lightning Dragonsteel, Block of Lightning Dragonsteel and Block of Lightning Dragonsteel, arranged in the pattern shown. Produces Dragonarmor Dragonsteel Lightning Tail.
Crafting 
Dragonarmor Dragonsteel Lightning Tail guaranteed
iceandfire:dragonarmor_dragonsteel_lightning_tailiceandfireiceandfireiceandfire:items/dragon_armors
Recipe JSON (1):
{
"recipe_type": "minecraft:crafting_shaped",
"pattern": [
" ",
" #",
"## "
],
"ingredients": {
"#": {
"item": "iceandfire:dragonsteel_lightning_block"
}
},
"conditions": [],
"sequence": null,
"group_name": null,
"experience": null,
"cooking_time": null
}