There are dozens if not hundreds of cards that are worth north of $100 and plenty of cards worth more than $1000
NM copies of the reverse holo Cosmog reach heights of 52 cents, followed by LP clocking in closer to 28 cents, and lastly, a moderately played (MP) sale disrupts the price trend with a 37-cent sale
This specially goes for Counter Fairy builds and/or arround "Van'Dalgyon the Dark Dragon Lord", as their monsters' effects goes arround Counter Traps for increase the results by negating their opponent moves
Moment of Silence: Target player skips their next combat phase this turn
"Cold Wave" is banned from standard play right now, so you can combine this card with others to create a similar effect, but thats a lot of resources being spent on another niche situation
The other Sliver I have a lot of respect for is Taunting Sliver