If your deck is built around Zombies, you can probably see the potential for huge draw at a relatively cheap cost
Then, if you have a Tamer in play, hatch 1 Digi-Egg card to an empty space in your breeding area
Then the four-cost sorcery in Gruul colors can destroy one of artifact, land, dork and enchantment too
My guess
Both games get played a lot, and I really appreciate that besides making shuffling and picking cards up off the table easier, they also offer solid protection, especially for that Witcher game
After just my third attempt at singling out the swallow-like bird Pokemon, I encountered one that was a good five levels stronger than anything else in the area and that had Sky attack - a powerful flying-type move that it otherwise could only get through hours of difficult trial-and-error breeding