The deck is far too creature-heavy, with 39 in total, which is somewhat understandable given there will be a lot of sacrificing, but that's typically reserved for tokens, which can be created by instants, sorceries, and enchantments
-sigh- Commanders emphasis on color identity in deckbuilding has successfully kept Krrik, Son of Yawgmoth from being a huge problem in the format as a whole, but its still a powerhouse that should be removed or countered on sight against decks with a large or exclusive emphasis on black, as 4 mana can easily become as much as 16, more if life gain enters the equation
Firstly, the exile effect is attached to a 2/2 body for three mana, which is perfect as far as tempo plays go
Divine Arrow is not higher on my list because while it's decent removal for a marginal cost, I don't think it's the best in that a lot of creatures are going to grow to massive sizes before this card can deal with them