Before we make forms, let's start with the elements :3

Water - You can create waves, tides, and if you're older and WAY stronger, then you can create floods, you normally have to use it outside.

First Elements:

Earth - Make flowers and grass grow, you can normally make friends with woodland creatures, but if you're stronger, you can make roots in to beasts or stuff

Fire - Creating flames out of thin air, they usually have to be careful when they get angry, although, they do give warning signs when the fuse has reached its end, it doesn't mean you have a bad temper, but when you lose a fuse, let's say you should be careful, listen to music or relax

Wind - Creating harsh breezes or gusts of wind can make you a bit powerful, making fog is also pretty possible, on VERY rare occasions, you can use the wind to make yourself hover

Second Elements: (It is possible to have another element from the first elements if you have a second element)

Ice - Making ice spikes and freezing people, you have to be very careful with this, these ice people usually wear coats due to freezing temperature they create.

Lightning - Making strikes of thunder, they usually work well with Water elements due to being able to make rain clouds.

Third Elements: (They are able to have Second and First elements, but these are VERY, VERY rare)

Sun - They can make a BLAZING heat and a bright glow, being able to blind a person or enemy, you better not startle a sun element, you get burned or blinded....

Moon - Being able to make stars when in a dark room, they usually have help with sun elements to help get the stars glowing bright, moon elements can make a thing reflect a glow examples are water elements and ice elements

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You can ALSO have some magic pets, examples are serpents, baby dragons or adult dragons, snails, or wolves.
These companions should be treated more as friends than pets.
They also match the element you have so they can make your spell stronger.