Card’s in-game coded mechanic seems broken “After your hero attacks, gain an empty Mana Crystal” Issue is once your hero attacks with this weapon equipped, it burns a mana crystal as well, meaning when you have 10 filled mana crystals, you attack with this already equipped from your last turn, you end up with 9 filled mana crystals.
Tested and confirmed:
Also affects temp mana:
Presumably it's implemented in a way that gives you a (full) mana crystal, then drains one mana.
https://us.forums.blizzard.com/en/hearthstone/t/greedy-pickaxe-prog-code-broken/9956
Tested and confirmed:
![Hearthstone Screenshot 10-11-19 20 41 14](https://user-images.githubusercontent.com/8607832/66691916-db819500-ec67-11e9-85bb-f8096d731462.png)
Also affects temp mana:
![Hearthstone Screenshot 10-11-19 20 40 03](https://user-images.githubusercontent.com/8607832/66691928-e6d4c080-ec67-11e9-87f0-8f7808b52a0b.png)
Presumably it's implemented in a way that gives you a (full) mana crystal, then drains one mana.