CharlieQiu2017

import crafttweaker.api.events.CTEventManager;
import crafttweaker.api.event.player.MCItemCraftedEvent;
import crafttweaker.api.item.IItemStack;
import crafttweaker.api.item.MCItemDefinition;

var tag = <tag:items:minecraft:flowers>;

CTEventManager.register<MCItemCraftedEvent>((event) => {
  if(event.player == null) { return; }
  var elem = tag.elements[0] as IItemStack;