After Tarkir block ended, Magic the Gathering made the switch to a two-set block system. The first of these was a Return visit to Zendikar which was now under siege by the Eldrazi. This was followed by a Return visit to Innistrad, where the Eldrazi were called to by the planeswalker, Nahiri.
"Battle for Zendikar" and "Oath of the Gatewatch" were Magic's 68th and 69th expansion sets and their corresponding cards are Ulamog's Reclaimer and Essence Depleter, respectively.
"Shadows Over Innistrad" and "Eldritch Moon" were Magic's 70th and 71st expansion sets and their corresponding cards are Jace's Scrutiny and Nebelgast Herald, respectively.
What did you think of the Eldrazi storyline and these cards?