It's not that it's duplicating a spell, it is a better version of a Warlock invocation. That's too good for a racial ability. And it is on top of two skill proficiencies and a strong recharge-on-short rest combat defensive ability.
Between social encounters, skill versatility, and combat there is not an area of the game where the Changeling race does not provide a very strong boost to strength. It is unbalanced relative to other strong options in the game. They gave it too much.
Between social encounters, skill versatility, and combat there is not an area of the game where the Changeling race does not provide a very strong boost to strength. It is unbalanced relative to other strong options in the game. They gave it too much.
