Or perhaps if you aren't as into fun as I am, Shapesharer could copy an opponent's Consecrated Sphinx, or Titan, or Eldrazi
Then we got True-Name Nemesis (hey, not all patches are lauded, but how many True-Names do you see running around nowadays?)
Chevill, Bane of Monsters Chevill, Bane of Monsters captures the flavor of a monster-hunter well enough, but it has a fatal flaw
You can even turn old cards into new ones, because Star City Games is always buying!
The rarest Pikachu card officially released is the Pokmon Illustrator card, which is believed to have only 39 copies in existence
Winning this coinflip lets you gain control of an opponents spell at instant speed, while losing it turns the card into an expensive Cancel