Corpse Shielding Parasite

Vigilance, Haste
Whenever you attack with a Zombie or Parasite creature, for each attacking creature chose X combination of these:
•Pay 1 Life; Draw a card
•Pay 2 life; Target Zombie or Parasite creature gets a +1/+1 counter
If you use these abilities, sacrifice this creature at your end step and create a 1/1 black green Parasite with hexproof