Kiora Ascendant Goddess

+2: Create a 2/2 blue Hippocant creature token with 'When Hippocamp enters the battlefield, untap another target creature you control.'
-4: Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.
-12: Draw X cards where X is your devotion to blue. Then if there are 15 or more cards in your hand, you win the game.