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 type of your dragonmarked Intuition Die increases by one (for example, from a d4 to a d6).
• Increase one ability score by 1, either Intelligence or Charisma, to a maximum of 20.
• You learn the spells sending and tongues, each of which you can cast once without expending a spell slot or using a material component. The spellcasting ability for these spells is Intelligence. You must complete either a long or short rest to regain the use of these spells.