Everyone hates its effect, so they target my commander hard
Manga art cards like Vilis, Broker Of Blood and Evereth, Viceroy Of Plunder provide impressive gameplay mechanics
Throes of Chaos
These will kill foes, draw cards, ramp Treasures (Storm-Kiln Artist), and make tokens to block or swing with (Young Pyromancer and more)
It's worth noting that cards like Devout Decree are both good against Mono-Red Strategies and Dimir strategies, making it a flexible removal spell
Another thing I heard from many of the people whom I spoke to was the importance of limiting the number of copies of cards in their collections: Jesse Lyons from Castles and Cooks and jestergoblin: I generally keep four of each card with the exception of staples, like Brainstorm or Counterspell, where I have around twenty copies. Adam Styborski from pretty much everywhere but primarily GatheringMagic and DailyMTG.com: I sell/trade most of my rares and valuable commons/uncommons