Scalpers are making it impossible to find cards
As someone who plays Karlov of the Ghost Council, I am speaking about myself here
While this effect can be disrupted by Iono, it still forces the opponent to make plays that they might not want to, which is why Serperior is an interesting card for the current format

$6.99 Vincent Valentine (0383 - Borderless) Final Fantasy Variants $1.79 Vaan, Street Thief (0390 - Borderless) Final Fantasy Variants $4.49 Dion, Bahamut's Dominant (0376 - Borderless) Final Fantasy Variants $2.99 Firion, Wild Rose Warrior (0386 - Borderless) Final Fantasy Variants $6.49 Kuja, Genome Sorcerer (0399 - Borderless) Final Fantasy Variants $2.49 Noctis, Prince of Lucis (0401 - Borderless) Final Fantasy Variants $4.49 Jill, Shiva's Dominant (0378 - Borderless) Final Fantasy Variants $2.99 Cecil, Dark Knight (0380 - Borderless) Final Fantasy Variants $6.49 Joshua, Phoenix's Dominant (0397 - Borderless) Final Fantasy Variants $10.99 Aerith Gainsborough (0374 - Borderless) Final Fantasy Variants $4.49 Zenos yae Galvus (0384 - Borderless) Final Fantasy Variants $8.49 Summon: Primal Odin (0365 - Borderless) Final Fantasy Variants 0 results found
Well break all of that down and more
Taniwha Taniwha has to be top 10 on the list of bad cards from the 90s that we all tried so hard to break, but failed