@SubscribeEvent
public void inputEvent(TickEvent.PlayerTickEvent event) {
if (event.phase != Phase.END) return;
ItemStack rightHand = event.player.getHeldItem(EnumHand.MAIN_HAND);
ItemStack leftHand = event.player.getHeldItem(EnumHand.OFF_HAND);
if (rightHand.getItem() == MyMod.myItem) {
}
}