still cant get around good old Swiftfoot Boots or Lightning Greaves, but it nullifies just about every other ace an opponent might be relying on to save their creatures: counterspells, Heroic Intervention, Mother of Runes, Deflecting Swat, Ephemerate, Teferis Protection, everything
: Exile another target creature
Blue has few good two drop creatures and even fewer good defensive ones which earns this guy many of his slots
Without a flying creature, your opponent wont be able to stop you from adding counters to anything you want
Using it, you can save yourself from disaster by choosing one of your opponent's Benched Pokemon and switching them for the Active one
Running a playset of Brainstorms in Legacy gives you access to 20% of your deck in card selection (if you can cast all four) while thinning your overall decklist by nearly 7%