Druids can be nasty business. I would know. In Pathfinder I was tasked with making a character centered around DPS (damage per second) with nothing but the core rulebook and I skipped past the Fighter, the Barbarian, the Wizard, and the Sorcerer and went for the Druid. Augment summons at level one for Strengh and Constitution boosts to all summons, Wild Spell to cast in animal form, Dire Tiger wild shape and Dire Tiger animal companion. Why? Pounce, Grab, Rake chain.
Pounce - Make a full attack off a charge
Grab - Get a free grapple attempt off a successful attack
Rake - Extra damage done against a grappled opponent
The brutality is real