gyrados pokemon card - Gyarados - 6/102 - Holo Rare discard the top 2 cards of your deck Top 10 Most Valuable Gyarados

Just like that card, this card actively cannot win you the game and its only effect is to force a draw

This is exactly what got it banned in Kaladesh Standard only a few months after its release

Ancient Den: The Metal Citadel Good for: Artifacts Matter, Artifact Reanimation, Affinity for Artifacts Ancient Den may look like a humble land that taps for 1 white mana, but its artifact supertype is so powerful, weve not seen an artifact land that enters untapped and taps for colored mana since the cycle it was featured in

The power here isnt in either of those modes specifically, but rather that this card is super flexible

For example, Sylvan Library is $0.02 on Magic Online and $45 in paper

With those caveats in mind, the rest of this post will cover a few results which I found interesting, looking first at cards individually, then at groups of cards and finally at long-term trends