Tung-Ak, Keshik Goddess

+1: You may untap target creature. If you do, you gain 2 life.
-2: Exile target creature. Its controller may search its library for a basic land card, put that card onto the battlefield, then shuffle the library.
-7: Destroy four target permanents, create three 2/2 green Snake creature tokens with deathtouch, draw two cards and target opponent loses 1 life.