Though the first will grab you a card or two on occasion, it mostly serves to disincentivize small swings that might have been sent your way on a whim
This makes Shadowspear a great tool to slot into equipment packages, Trinket Mages bag of tricks, or simply as a silver bullet to deal with specific metagames
Their excellent shuffle feel enhances gameplay, making each game smooth and enjoyable
Add in Cheshire Cat, Not All There's and Kuzco, Temperamental Emperor's mutually assured destruction, Flynn Rider, Charming Rogue forcing you to discard (just one card), and Mother Gothel, Selfish Manipulator's ability to stop opponents questing, and Emerald decks will quickly become the most annoying to play against
To me its important I can input cards without needing to use my mouse