The most in-demand cards where those that were generically good in all sorts of decks, like Mana Reflection, Doubling Season, Lightning Greaves, Sol Ring, Eternal Witness, etc
Pokmon cards are becoming increasingly popular among collectors, and some of the rarest Pokmon cards can sell for hundreds or even thousands of dollars
Majestic Myriarch
I didnt think For ten mana, this card exiles half of an opponents library, gets at least three +1/+1 counters (going by average mana values), making it a 10/10 most of the time when it enters with a Ward - Annihilator 2 level of built-in protection, and, again, likely Annihilator 3 if you exile at least a permanent card with a mana value of three from half your opponents deck (again, this is being conservative)
Swiftfoot Boots ($9) Pretty shoes are also not to be underestimated
Catching a ban to end Eldrazi Winter in Modern, the Eye restricts the cards you can play severely in exchange for an amazing mana advantage
