Prehistoric Pact

At the beginning of your upkeep, choose one that hasn't been chosen--
-put two +1/+1 counters on each creature you control.
-Create a 3/3 green dinosaur creature token with trample.
-you gain 1 life for each creature you control.
-Target opponent creates two 10/10 green elder dinosaur creature tokens with indestructible and trample.