Fisher's Talent is an expensive investment for what it does in the first couple modes, and if you get it into play early you aren't likely to invest more mana into in to gain levels until late enough in the game that it loses value
If you get through your whole library without revealing a land card, you'll just end up revealing and randomizing your library
At best, you can cast this spell after a massive board wipe destroys all creatures in play for a much smaller three mana
Used wisely, you can deal decent damage and control the board with the right timing
As a bonus, it can also get pretty strong, especially if youre running cards like Itlimoc, Cradle of the Sun
Some cards look like great cards for cycling like Unpredictable Cyclone but really work against the strategy it's trying to execute