#3 Mega Dream ex Best First High Class Pack (~$63 / 9,200) Mega Dream ex is the most beginner-friendly High Class Pack ever released and the most affordable HCP on the market right now
To make things even better, it included some crazy powerful cards for the time like Dragons Fire and Alladdin, Heroic Outlaw a card that was used in every Ruby deck back then (and is still strong in my opinion)
Certainly this is too narrow for most cubes but it is also still one of the best blue removal spells on offer
3 - Autographed Black Lotus The iconic Black Lotus pops up on this list twice, with an autographed version signed by its illustrator, Christopher Rush, going for around $511k
While the set is geared toward beginners, it has some seriously powerful (and expensive) reprints
If you copy a permanent, that copy automatically becomes a token when it enters, so keep that in mind