Spellthief's should literally steal gold from other players

The problem here would be that ADC builds are typically on the more expensive end and even if you only steal a couple hundred gold throughout the course of the game, the balance of the game is currently being held in place by carefully chosen item prices. People already complain that tanks are nearly unkillable because they reach their 6 item state faster, delaying a carry gold seems like it would only make this issue more prominent. You also can't just lower the price of AD items to compensate because it is a huge nerf to relic shield and ancient coin then. So while this would make the item more satisfying to use and more in line with the name, I can't imagine it would be good for balance.

Spellthief should literally thief spells.

Too OP on support Spellthief Lux with Pickpocket.