Taa-Anshla, The All-Consuming

Whenever a creature is sent to the graveyard, add half of its power to Taa-Anshla's power and half of its toughness to Taa-Anshla's toughness rounding down (except for 1, which stays as 1).
If a Slime or Ooze is sent to the graveyard, add its power and toughness to Taa-Anshla's power and toughness OR add its ability to Taa-Anshla.