Loki77, you can just break the hero's equipment in the game.

You can sell and boost things to clear them out I know some players just leave chest  and then discard them when an equipment they want comes along.

I could boost them. But why should I waste boosters for this. A class II rare item needs 15 hours for selling but only gives you 400 moon gold. It's not worth. I want to discard such items. If I get such a chest I discard it. But often you get them naked.

How can I break it?

Here is the screenshot of how to break the item: https://imgur.com/DG1MPPF

I hope it was helpful.

If you clear them during the brawl they give you brawl points based on the time they have  that is the best time to boost them to clear. To help your league in the brawl that's the best advice I can give you to get the most value from them in my opinion.

Sorry, wrong game. There is no break button in Stormfall, only to sell the equipment. But it's the one I want.

Thanks for noticing it. We'll forward it to the dev team. Cheers! 

Hello, Loki77! There has been a slight misunderstanding. The "Break" button in Sparta performs the same action as the "Sell" button in Stormfall. So, you can only sell items now. I haven't seen a lot of requests to discard an item, to be honest... 🙂