Changing an item lore

Hi, I'm new to forge, I'm trying to change a specific item lore/description every second, from an outside class, but nothing happens.

Here's what I tried :

List<ITextComponent> list = new ArrayList<>();
list.add(new TranslationTextComponent(text));
itemstack.getItem().addInformation(itemstack, (World) world, list, ITooltipFlag.TooltipFlags.NORMAL);

This is in an event method called each tick (and in a condition to make it only each seconds), and i'm sure the problem is with these lines because changing the item display name each seconds works perfectly.

Also, maybe that's not very important, but i'm using MCreator.