Amphibious. If the Form has a swim speed, the Druid can breathe both air and water. Flyby. If the Form has a fly speed, the Druid doesn't provoke opportunity attacks when they fly out of an enemy's reach. Keen Hearing and Smelling. If the Form has no fly or swim speed, the Druid has advantage on Wisdom (Perception) checks that rely on hearing or smelling. Naturally Stealthy. The Form has advantage on Dexterity (Stealth) checks.
Multiattack. The Druid makes 2 Maul attacks upon reaching 5th level in Druid, 3 Maul attacks at 11th, and 4 Maul attacks at 17th. Maul. Melee Weapon Attack: Your spell attack modifier to hit, reach 5 ft., one target. Hit: 2d6 + Wisdom modifier as piercing or bludgeoning damage (your choice) Pounce. If the Druid moves at least 30 feet straight toward a creature and then hits it with an Maul attack on the same turn, that target must succeed on Strength saving throw against your spell save DC or be knocked prone. If the target is prone, the Druid can make one Maul attack against it as a bonus action.