Elemental Chaos

You are born with the powers of the elements, but it is not easy to control. You need time and patience to harness the power within and learn how to master the chaos.

Elemental Adaptation

At level 1 you can change the elemental spells known from the sorcery spell list after each long rest. Be aware, the spells do count as spells known. 
After a long rest you can spend 1 minute for each spell you change from the elemental spells list. You can change any elemental spell from any level you want, as long as it is from a level you can cast spells from. 

The elemental spells that a sorcerer can change are:

1st Level Spells                 2nd Level Spells                             3rd Level Spells                     4th Level Spells             5th Level Spells
Absorb Elements              Aganazzar's Scorcher                   Eruptin Earth                           Ice Storm                       Cone of Cold
Burning Hands                  Dust Devil                                        Fireball                                     Stoneskin                       Control Winds
Catapult                             Earthbind                                         Flame Arrows                         Storm Sphere                 Immolation
Chromatic Orb                  Gust of Wind                                    Fly                                            Vitriolic Sphere              Wall of Stone
Earth Tremor                     Levitate                                            Lightning Bolt                         Wall of Fire
Feather Fall                        Maximilian's Earthen Grasp         Melf's Minute Meteors           Watery Sphere
Fog Cloud                           Pyrotechnics                                  Protection from Energy
Ice Knife                             Scorching Ray                                 Sleet Storm
Thunderwave                     Snilloc's Snowball Swarm            Tidal Wave
Witch Bolt                           Warding Wind                                 Wall of Water
                                                                                                       Water Breathing
                                                                                                       Water Walk                   

Elemental Resilience

At level 6 you can after each long rest choose one type of damage to be resistant to. You can choose between cold, fire, force, lightning or nonmagical bludgeoning, piercing or slashing damage. 

Whenever you take damage of any kind from that list, you can use your reaction to spend 3 sorcery points to change the resistance type to the damage type you just took. 

Elemental Transformation

At level 14 you can use an action and spend 7 sorcery points to transform into an air elemental, an earth elemental, a fire elemental, or a water elemental. 

While you are transformed, you follow the same rules as druids do for wild shape, except for casting spells:

• You can only cast spells that require no material components, but even then, you can only cast spells that are based on the elemental you have transformed into, and only spells that are known to you. The DM has the last say in what spells that would be. 

Elemental Focus

At level 18, all the elemental spells from level 1 to 5 in the sorcery spell list is known to you permanently. The elemental spells does no longer count as the number of spells known for you, but you do not gain the ability to add new known spells from the sorcery spell list to replace the elemental spells that no longer count as known spells.