With the help of a Commander deck building template, it is pretty easy to learn how to build a Commander deck
However, my guess would be this card is going to see a lot of play in decks focused on Location cards
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
Everything else being equal, you want to fetch up the Forest if youre playing this Bant list
Skulk isnt very popular among players, and designers realized it had a much narrower design space than they originally anticipated
For example, when paired with Ghave, Guru of Spores, you can continuously drain the life of each opponent by sinking mana into your Commanders abilities