The 2x Money doubles the money earned from killing enemies and completing quests. The multiplier stacks with 
Enchantments - enough to fill your wallet twice as fast while farming normally.
How to get it
Permanent 
Game Pass, purchasable in the game shop for Robux.
Strengths and weaknesses
- Doubles money earnings from kills AND quests
- Stacks with Enchantments
- Permanent, therefore profitable in the long term
- Purely economic bonus - no direct effect on combat or progression
Money farming works fine already without the pass
Our take
Comfortable but not essential - it's a purely economic bonus. If you can only get one farming pass, 
2x Mastery is generally more impactful; 2x Money is a good second comfort purchase.
Update history
Game Pass : 2x Money·Released : Update 4
2x Boss Drops Chance
2x Money
Dark Blade (Gamepass)
Fast Boats
Fruit Notifier