"That's one card that I've never obtained as a [PSA] 10." Out of the 27 cards graded by PSA to date, there are only three PSA 10s
Cards like Mind Twist can win games
This works to your advantage since it means your cycling delinquency goes mostly uninhibited and you'll be able to carry out your game plan more reliably than a storm or combat-based deck
Personally, that has not been the case for me, and before Pact came on the scene, I think it had all the hallmarks of a top deck
This is also a good ability to help protect your characters from being challenged after using them on your turn, as readying them will prevent this from happening - though it wont stop them from being targeted by songs, actions or direct attack abilities
likely in an upcoming set, but it could also just be there to build some flavour