Lala of the Sacred Forest

{g}{u}, {t}: Create a 1/1 green and blue Insect creature token with flying and "Whenever this creature deals combat damage to a player, scry 1."
{3}{w}{w}, {t}: Reveal the bottom five cards of your library. If five nonland cards are revealed this
way, destroy all other nontoken creatures. Shuffle the revealed cards into your library.