Kahiri, Bolas Horror

+3: Choose one: target creature gets +6/+6 and has annihilator 1, add four mana of any color to your mana pool or deals 5 damage to target player.
+4: Choose one: each player sacrifices a creature and discard a card or draw 2 cards and Return two target creatures to its owner's hand.
: When Kahiri, Bolas Horror has 20 or more loyalty counters on her, you may sacrifice 10 permanents. If you do target opponent loses the game.