I used Hextech crafting for a little while then I wanted to see if I would still get champion shards if I owned all the champions. You can still get the champion shards when you own all the champions and they're useless at that point. I own all of the champions on live, and if i paid real money for a case and opened a champion shard that can only be used to get champions or champion essences, which can also only be used to get champions. I would be mad about wasting my money. Please make it so that if all champions are owned then you can't pull champion shards anymore.