Editing Sorin Markov (section)

=== Shadows Over Innistrad ===
Flashback time! A thousand years ago, the Hedron network weakened just enough for the Eldrazi titans to corrupt some mortals into attacking their prison. Nahiri woke up and easily stopped the immediate threat (being an oldwalker), but to her surprise neither Ugin or Sorin showed up when she sent the alert[http://magic.wizards.com/en/articles/archive/magic-story/stirring-slumber-2015-05-13]. Ugin was either suffering a minor to severe case of postmortem decomposition or healing in a coma, depending on the timeline, so solid excuse either way. Whereas Sorin simply didn't get the message because his planar wards around Innistrad inadvertently blocked it. 

Nahiri confronted Sorin about not upholding his small end of the unequal bargain (Nahiri indefinitely watching over and risking her native plane vs Sorin keeping his damn phone on) and demanded his help fixing shit. Instead of fixing shit and/or apologizing and/or explaining his weakened state from recently creating Avacyn, Sorin told her 'Bitch I don't owe you anything' and imprisoned her inside the Helvault indefinitely with a bunch of demons.[https://magic.wizards.com/en/articles/archive/magic-story/stone-and-blood-2016-06-15] Oldwalkers were dicks.

Liliana breaks the Helvault ~1000 years later, and Nahiri is out to make [http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=409941 Sorin suffer by making Innistrad bleed]. So Sorin goes to the vampires that hate him so very much to ask for their help against the powerful foe he arrogantly, idiotically, and needlessly snubbed. To secure the aid of the other vampires, however, he must destroy his one true waifu, Avacyn. This wasn't necessarily a bad thing for Innistrad by this point, given that she'd gone batshit crazy and started going on wanton slaughter rampages.[http://magic.wizards.com/en/articles/archive/magic-story/promises-old-and-new-2016-04-13]. But Avacyn was irreplaceable - forging her took the full godlike power of pre-mending Sorin and left him weakened - and her death allowed Emrakul to enter the plane.