Nara, the Thunderstorm

+3: Nara the Thunderstorm does 3 damage to each opponent and each of their creatures
-2: Take top 10 cards of opponents library and separate into 2 piles opponent chooses 1 to exile and 1 to shuffle into library.
-10: Create a 10/10 Thunderstorm Dragon Token with flying, vigilance, haste, and trample.