Luchador, how does it work

[malogoss]

Luchador is a joker. (The illiustration is a wrestler wearing a mask)
The text reads "Sell this card to disable the current Boss Blind"

I had Luchador. I sold it before the boss fight. I still had to fight the boss and that boss ability was still active. Basically, nothing changed, business as usual.

So I guess my question is, how should I use Luchador for it to actually have any effect and what is that effect?
thanks

[☃Thelonelysnowman ☃]

You have to sell it during the boss fight

[Monoxide]

Use it during the fight and if the current effect (like if its -1 hand size for instance) you will draw the extra card it would normally cost you. gl in your future runs homie.