Carnelian Orb of Dragonkind is cute and could be an upgrade over another mana rock
Not only does it tutor exactly what you need, but you also get to give an opponent a card too, that you can mill before they get a chance to draw it
But on closer inspection, I think the actual most broken card of the year is the reanimation spell Dread Return
If your deck has some number of fetchlands like Misty Rainforest, Evolving Wilds, Myriad Landscape, or Blighted Woodland, you should strongly consider Erinis for your deck
Theres the Master Sleuth himself, who not only provides you with a clue, but he can turn every single one of them into Sphinxs Revelation
With each Happy Meal purchased, customers would receive one of these packs that contained a card from the Japanese Base Expansion Pack set, or the Wind from the Sea set with alternate art