Pickle Rick, Rat Slayer

If this creature was put into the battlefield from your Library or Graveyard, create 2, 1/2 rat creature tokens with "{t}{1} sacrifice this token creature and add a +1/+1 to target creature"
*Whenever this creature destroys another creature or an artifact is played under your control this get 2, +1/+1 counters until end of turn*
This creatures health is equal to the amount of cards in your graveyard