Recently, Wizards of the Coast released The Lord of the Rings: Tales of Middle-earth
For Death's Shadow, the average converted mana cost is incredibly low (likely the lowest in all of Modern) at 0.76, meaning the average nonland card in the deck costs significantly less than one mana
While the cost to summon this card is high, the four Lore tokens it awards for going questing are well worth the price
The combo is Melira, Sylvok Outcast, a persist dork with a comes into play effect and a free recursive sac outlet
Some decks just can't beat this and so you win, all be it very slowly
Twenty Revised cards were originally in the Arabian Nights expansion, and another nineteen were originally in the Antiquities expansion