Skill Borrower

The whole premise is that the top of your library is a borrowable toolbox, and the 1/3 body exists only to host whatever activated abilities happen to be sitting there. That makes it a deckbuilder's puzzle in a single card: stack your library with artifacts and creatures whose tapped or sacrificed abilities you want, and this Wizard becomes a rotating engine that changes every time you draw. The wording does the careful work that stops it from collapsing into a static copy effect: it grabs only activated abilities, not static or triggered ones, and only while the revealed card is an artifact or creature, so each fresh draw can switch the function entirely or shut it off. The name-substitution clause is the quiet tell that the design knew where this would go: any ability referencing the source card's own name gets rerouted to this creature, which means a borrowed ability that taps "this card" or sacrifices "this card" operates on the borrower's body, not on the unseen card on top. The cost of all that flexibility is that you play with your draws face up, and you steer which abilities you get only by controlling your library, so the engine is exactly as good as the deck built underneath it. It belongs to the small family of designs that turn the top of the library into a managed resource rather than a surprise, and it is among the most open-ended of them.