So useful, such value, wow!
First, it boots a dude, so he can no longer play Pistol Whip, and cannot move if he's still alive after the shootout (i.e. send Travis to heroically hold off Steven in the town square to prevent him from reaching some important deed).
Second, it blocks the dude's abilities. Relevant ones are: Wendy, Rémy Lapointe, Mongwau.
Third, it boots and blanks all goods and spells! Shutgun, Holster, Flamethrower, Blood Curse - not scary anymore!
Some notes on using this card:
Traits like those of Tommy Harden and James Ghetty are not affected!
Best used if you're the lowball winner - prevent them from ever using those nasty abilities on you!
Hit the only unbooted enemy immediately if you expect Pistol Whip!
Hit Rémy / Mongwau before they use their built-in ability!
Hit a dude with a Flamethrower after they use it, to make them spend some extra cash. But only if you have other plays! Do not pass! Don't get greedy!
If you play it at a dude with Peacekeeper, the -1 bullet penalty from Unprepared will not apply. But then the gun will get booted and lose it's bullet bonus, and you can now hit the dude with Sun In Yer Eyes!
Sidekick is neither an ability nor a trait, but a keyword. It can still be used to cover a casualty!
Hex Slingin' can still be played against you using a booted and blanked hex!
Catch them with their pants down!