Greater Aberrant Dragonmark

Your aberrant dragonmark grows in power. It also grows in size to cover a larger portion of your body. A mark that previously covered your hand might now cover that entire arm. A mark on one side of your face might now cover both. You gain the following benefits:

• Increase your Constitution score by 1, to a maximum of 20.
• Choose a 2nd-level spell from the sorceror spell list. You learn that spell and can cast it through your mark. Once you cast it, you must finish a long rest before you can cast it again through the mark. Constitution is your spellcasting ability for this spell.
• When you cast the 2nd-level spell through your mark, you can roll a DC 10 constitution saving throw. If you succeed, you can cast Mind Sliver at a creature of your choosing as part of the same action used to case the 2nd-level spell, using Constitution as your spellcasting ability. If you fail, that casting of Mind Sliver targets you instead and you automatically fail the save. In either case, you choose which order the spells are cast in.