Greater Mark of Storms

Your dragonmark has grown in size and power. This enhances your existing dragonmark, and the benefits are based on the mark that you already possess. A greater dragonmark provides the following benefits:

• The die granted by your Windwright's Intuition feature increases to a d6.
• You can increase either your Charisma or Dexterity score by 1.
• You learn the control water and control winds spells, each of which you can cast once without expending a spell slot or material components.  You regain the ability to cast these spells in this way after finishing a long rest.  You may also cast these spells using any appropriate spell slots you possess.  Charisma is your spellcasting ability for these spells.