Edric is the preferred choice because it shines by coming down earlier and enabling more colors, though it carries the small multiplayer drawback of also rewarding opponents who attack elsewhere
The speed of the game makes it hard to find the time for a card that doesn't directly impact the game, but the real problem was that a lot of cards started using their graveyards for fun and profit, much more so than in the past
If you didnt buy a preconstructed deck (or you want to upgrade your precon), you have two big options for how you build your deck in terms of what you buy
If you are lucky enough to open a textured foil, you just pulled one of the most valuable cards, and even the base version has a decent price if you don't get the fancy art treatment in your pack
What this means is that basically any burn spell that would do more damage than necessary to kill a creature now converts that damage into direct burn, which is incredibly efficient