Ken would obviously benefit from some of the power-boosting cards we detailed above for Ryu
Magic: The Gathering | Marvel's Spider-Man Play Boosters contain cards from SPM and MAR
Shes a wise and dedicated artificer whos taught many of the greatest lifecrafters of Kaladesh
It's probably a bunch of RTR bulk and the seller is trying to "get their money back." (there seems to be a common misconception among people selling their cards on Craigslist that their cards should be worth at least as much as the boosters they opened to get the cards)
The card itself is Thrasios, Triton Hero , a Simic legendary creature that also has a four-mana ability to let you scry one card, and if it's a land, you can put it on the battlefield tapped
Artifact synergies aside - and you might want to stuff your deck full of artifacts if you have that - you can get this back from the graveyard for a single turn, which is a decent bonus, especially if you can pump a lot, or have a massive amount of red mana to kill an opponent out of nowhere from your graveyard