Inputs require a true or false value which tells the recipe if the recipe consumes the item or not by default we parse true so only add false whne needed
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
);
});
