Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)
Create a 3/3 green Elephant creature token. Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)