Smiffle the Great Leader

{r}: Smiffle the Great Leader deals two damage to target creature or player
{1}{g}:All creatures you control gain trample until
end of turn
{2}{u}:Draw 4 cards then discard 2 cards

Whenever a nontoken Dinosaur or Caveman creature spell enters that creature gains +1/+1 counters equal to the number of Dinosaur and Caveman creature spells you control