While initially designed as an aura that wasnt nigh-guaranteed card advantage, its proven far more flexible over a decade later in sets like Aether Revolt (where it enabled Revolt) and Ultimate Masters (where it was quite strong alongside Heroic).
Despite being one-third of the legendary Three Blue Cards that did the non-artifact portion of the work, in the power nine
On creature-heavy decks you should run fewer board wipes because you dont want to clear your own board too often (about 2-3 seem enough, unless they are one-sided where you can add more without hurting your own strategy) while on creature-light decks you need more (about 4-5 is a good number)
If you do, put a +1/+1 counter on this creature and exile the top card of your library
That's to say nothing of utility artifacts and enchantments like Sensei's Divining Top, Scroll Rack, Sylvan Library, and Mirari's Wake
The addition of flash is what makes this card so good.One of the biggest drawbacks of removal on creatures is that most of them can only be cast at sorcery speed