The one-mana mode of Dread Fugue will trade for cards you could have just spent spot removal on (and an Infernal Grasp drawn later will be more useful than a Dread Fugue), where Inquisition of Kozilek can trade for things that youre glad to handle before they resolve
I wonder if any color is going to be able to compete with white for sheer quantity of powerful four-, five-, and six-mana threats in its top 25 list #20: Sun Titan Like all the Titans, Sun Titan enjoyed immediate success in Standard, especially when used to retrieve Jace Beleren in U/W Control decks, with Phantasmal Image being a popular and powerful endgame
In any deck wanting a card neutral Careful Study this is good
While these are mostly common, the white ones in particular will be sought after by anyone in that color
Things that are more trustable. There are dozens of other ways to buy Magic in various packages, but booster packs and boxes are the most common