Azami is really good and supplies three devotion by herself
Blasphemous Act Whats the deal with Innistrad sets and board wipes that include a cost reduction
The versatility of this Song makes it one you won't ever be sorry to include in a deck
Faerie Mastermind World Champion Yuta Takahashi helped design this card, and the Commander format adopted it en masse along with a good showing in other decks
This one has three different card arts, but I really like the serene, painting-like showcase of undersea creatures drawn by Amy Weber
Im going to quote Gavin Verhey from the article that I linked up above: Game Changers dramatically warp Commander games, allowing players to run away with resources, shift games in ways that many players dislike, block people from play, efficiently search for their strongest cards, or have commanders that tend to take away from more casual games