ServerEvents.recipes(event => {
  event.recipes.draconicevolution.fusion_crafting(
    "minecraft:dirt", // input item
    ["minecraft:diamond", ["minecraft:obsidian", false]], // diamond is used and obsidian is not 
    "minecraft:emerald", (result itemstack)
    "wyvern", // tier can be (draconium, wyvern, draconic, chaotic)
    1000000, //energy
  );
});