Note that this is a weapon and NOT a firearm and item.

So the only way to add ammo to this is through Venturer, Contraband(and its upgrade), and Cleaning Kit. The upgraded Cleaning Kit is worth considering for this.

Other staple upgrades do not work on this, including Well-Maintained, Reliable, Custom Ammunition, Custom Modifications, Extra Ammunition, and Swift Reload

So it seems that FFG wants to prevent players from building around (= abusing) this goddamn gun.

Along with At a Crossroads and Unrelenting, Last Chance is a Survivor card draw staple. For only 10 XP, Survivors can have guaranteed card draw on par with most Seekers with 10 additional cards per deck cycle---assuming you're willing to plan around the downsides of each card.

That being said, Last Chance can be inconsistent when you're too successful at refilling your hand. You can frequently run into situations where Last Chance becomes a dead card in your hand because you have a full hand and can't spend enough actions to make it worth dedicating to skill tests, or Last Chance prevents players from dedicating other skill cards because it has to be the only card dedicated to the skill test. The downsides are usually pretty minor considering that Last Chance usually dedicates for three to four wild icons and draws two cards on a success, but make sure to plan and coordinate with the rest of your table to avoid any potential drama.

Mr. Tesla is in competition to be the strongest ally in the game. He teleports free stuffs from nowhere for you. Pair him with a capable seeker and you’ll reap the profits (cards, resources, and even free clues). Or wear fine clothes while chatting with him. The 'gain 1 clue from the pool' effect will break some scenarios. It's awfully difficult to 'win' Machinations through Time, but even without accomplishing all its missions, you still have a good chance to nab Mr. Tesla. So it's worth a try.

Writing this reminder to my future self: Move does NOT triggers AoOs!

This is one of the best discard outlets available, and one of the only ones available to non-s (other than Artistic Inspiration). Marion in particular appreciates a way to chuck Winging It / Improvised Weapon.

There's a number of conditional 3+ skills, and their restrictiveness of their conditions varies. for 1 resource you get a Crack Shot, Inquiring Mind, or Take the Initiative with no other restrictions beyond spending that 1 resource.

That's already a good card! But Double Down lets you put in more resource for more icons. How much would you be willing to pay to commit Last Chance (3) to any test without restrictions? because I'm pretty sure I'd pay 2~3 resources for the right to do that, and that's what this card does.

This is Promise of Power levels of good, and I think you should at least consider it for inclusion if you're playing one of the ~14 investigators who can take the card.