The card was basically a staple of the top end in both Control and Valakut Ramp decks back in 2011
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While I can't use the dreaded "strictly better" words because Midnight ReaperMidnight Reaper draws off itself dying and Grim HaruspexGrim Haruspex doesn't, the life loss can add up quickly when you're going wide or have an Aristocrats engine going, so most times if you had to pick between the two, you're going to choose Haruspex
Combine that with Final Fantasy nostalgia and a premium borderless surge foil, and his high market price makes perfect sense
Youll be discarding too, so make sure you play this in a deck that uses the graveyard
In that sense, he's a character that is approachable to both old and new fans, and the fact that so many people keep coming to me asking for 'Sephiroth