This was one of my favorite decks pre-Omens, but it didn't really get anything new in Omens so I set it aside for a while. I picked it up again recently and it still seems quite good - I'm currently rank 12 with it. The main change I made from the pre-Omens version was replacing statuary maidens with deathstrikes - maiden got worse with banish, slay, and more runehammers, while deathstrike is a clean answer to Tavrod.
The basic gameplan with this deck is just to draw lots of cards with quarry/scheme/devour while using removal spells and grenadin to keep control of the board, and eventually win with TWH. It is tricky to play optimally though because you have to make a lot of decisions - which cards to take with quarry/scheme, which removal spells to use on which units, how much to commit to the board against harsh rule decks (if possible you want to force them to use a harsh rule on grenadins alone and then play one TWH at a time), when to keep slumbering stone in hand until you draw a devour, etc.