Ill let the artist himself, Ann Arbors own Randy Asplund-Faith, explain
Since Extortionists ability triggers when he enters play, you can very easily abuse it with reanimation and blink effects, too
The supply of cards on the secondary market (stores, social media groups, p2p trading, marketplaces) obviously depends on in-game rarity
Champion Your Strategy Build your deck from premium packs filled with 7 Commons, 3 Uncommons, 2 foil Rares or better, 1 foil of any rarity, and 1 token slot
Since Faithless Looting was banned, players tried to play graveyard decks using random bad enablers such as Merchant of the Vale / Izzet Charm / Thrill of Possibility and lately Faithless Salvaging
Hibernation Sliver is great, but you still end up paying two life per card saved to your hand and it's very easy to fall behind