Child of Elemental Fire

The core of your being is now a raging inferno. Any fire you create burns hotter than normal fires, creating their own fuel source, making them more difficult for someone other than you to smother or control. You are now immune to regular fire damage (though you are still only resistant to fire from other plans like demon or devil fire). Additionally, your fire spells will deal full damage to creatures with fire resistance and half damage to creatures with fire immunity.

Three times per long rest, you can express your inner fire allowing you to glow brightly with heat and any attacks against you are at disadvantage