matte back protects the art fully
Your Burnished Harts will fetch you four lands, your Mindslavers will let you control two different opponents and your Time Sieves will give you two additional turns
Either way, he's not looking great
It most assuredly isnt a correct reflection of the cards value, but it is an accurate report of what TCGPlayer was reporting for the card - like I mentioned earlier, cards move infrequently, so a single test sale for $1000 is enough to tank the price for a day
These two, along with Volcanic Island, all fit in the same colour scheme, and therefore regularly go in the same decks, which is probably why theyre all so highly valued
Further, this feeds into the second ability, which gives all of our creatures a +1/+1 counter if we cast or put a creature (or creatures) from our graveyard onto the board