Itll trigger all manner of payoffs, and while the activated ability is expensive and probably wont be used that often, it might come in clutch from time to time
The main downside is that blinking a legendary creature isnt going to have the copy hang around that long
I love it with Murktide Regent who loves to see those two types exiled
Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle
You can choose the most convenient and effective one
Of course, a more specialized tutor, such as the aforementioned transmute cards, could put the card in hand rather than on top of the deck at the cost of more mana, but with all of the best tutors and cantrips already taken, whatever goes in its place is likely to be underwhelming