Deep Forest Emergence

As an action, you force a small plant to grow into a forest in an instant. The trees grow in a dense 40 ft radius, 20 ft high forest around you. You and creatures of your choice are lifted by a root into the air. All other creatures in the area must make a Dexterity saving throw, taking 4d12  bludgeoning damage. Half as much damage on a success. The forest is difficult terrain for all creatures but you. The forest is made permanently and doesn't need concentration to keep 

As a bonus action, if you still have concentration you can make a large branch from the forest attack one creature. Make a melee spell attack. On a hit, it takes 1d12 bludgeoning or piercing damage

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d12 for each slot level above 4th.