Granted Spell (Constitution)

You have done something great in lign with your backstory or class, that's why you learn a spell that reflects that achievement. This spell does not count against the number of spells you know and is always prepared for you. Additionally, you can use this spell using your character's appropriate spellcasting modifier once per long rest without using a spellslot. After you do so, you can cast the spell using spell slots of the appropriate level.