Tornado

Manipulating the great winds into a fearsome cyclone, the Druid sends this force of Destruction into a throng of opponents, crushing into them and leaving devastation in its wake.

The way to use

Tornado is to lay down a lot of them.

It's best to aim past a monster sort of like Barbarian's

Whirlwind rather than click on a monster and cast.

Once you have experience with

Tornado you can use it more effectively.