I think Joey "The Rat" Vigil was the most unusable rogue card in the game until this version of him appeared in weaver of cosmos. Now, "The Rat" is one hell of a card, especially for Tonny Morgan. It is not only the cost that is reduced (4 to 2) but also a new fast ability that is added (Discard an Item asset from play: Gain two Resources) This new card gives a new refreshing strategy to rogues to get money super fast by discard assets from play that have no charges/supplies/ammo and play a new one (or even an exact copy of the same card from you hand) by paying the cost plus 1 resource. And it is fast! This opens a whole new world for rogues, as they can now explore a whole new bunch of cards that where never used. Such as Colt Vest Pocket. Also "The Rat" can create some sweet combos that can change the game drammaticaly - I will explain what I mean later on.
I play the Dream Eaters B Campaign with Tonny and Mandy. Tonny is an amazing investigator with insanely number of actions and he is heavily combat oriented. Some weapons such as .41 Derringer and Switchblade are essential for him and other such as Chicago Typewriter not so much. He has also 2x Tony's .38 Long Colt. In his collection of guns, I have added 2x of Colt Vest Pocket and using the ability of Rat, this card has now a meaning, because it is a gun bomb which is used normally for 3 attacks (maybe 4 if you put a bounty in an enemy) and before discarding it at the end of the turn, you just discard this asset and get the money back like you have never played it. The +1 damage is sweet and the bonus +1 strength gives a great 6 to handle weak enemies like Rats, Zoogs and overall enemies with Swarming. With this combo you won't need to use your best arsenal against them and you keep bullets for the fatties. Think Rat as Sleight of Hand, but with a reward. The advantage of Sleight of Hand is that it gives you the asset again in your hand so you can circle it again, the advantage of Rat is tha he gives you resources. You can choose which scenario is better for you or you u can use both because Rat is an unlimited source of Sleight of Hand. This can literally save you when you draw an encounter card and you are low on ammo. Also, another thing is that if you want to play a new asset that takes a slot that is already occupied, instead of discard it and get nothing from it, you can use Rat's ability and benefit from both cases - get 2 resources and play this asset fast!
Finally, a great combo with Rat is to circle a gun which has Well-Maintained. Just put this sweet fast card underneath the gun and when it is out of ammo, discard it, get the 2 resources and then take the gun back to your hand, to play it again (fast or not) or even commit to a test.
And the best part for Rat is that both his abilities can be used UNLIMITED in the turn. You don't exhaust him!!! Combine him with Charisma and Delilah O'Rourke and Tonny becomes a killer machine!