Naruto Nara bloodline idea

I came up with this idea for a bloodline for the Nara Clan because the shadow release that they use is a hidden Jutsu not a bloodline. I thought it would be pretty cool for an MC to have. The bloodline that I've temporarily named Shadowblood If anyone does use this idea I expect that they will to alter this these are just guidelines I'm sure they will either Nerf or buff certain parts.

Shadowblood bloodline

Description-The user of this bloodline has the ability to use and control all things related to Shadows physical or conceptual weather that be weapon constructs semi-sentient Shadow creatures Shadow walk and Shadow insight.

Shadow constructs-the constructs can be either inanimate or animate the latter being much more difficult and requires extreme mastery. semi-sentient constructs require the user's blood the bigger the construct the more blood is needed.

Strengths-contracts are extremely durable as well as versatile they can even hold a chakra nature on the outer part of the construct.

Weakness-while trying to be formed they can be washed out by either bright light intense fire or lightning there are also weekend but not useless against light fire or lightning when formed

Shadow walk-the ability grants access to the shadow world which is a kind of blurry black and white world that allows the user to Traverse at great speed. All shadows and darkness are a portal too and from the shadow world. Barriers and seals prevent the user from access to said world. The shadow world is disorientating for the shadow user but can be offset by training and while other people can Traverse the shadow world with the user it is not recommended because they get violently ill and disorientated from being in the shadow world.

Shadow insight-this ability allows the user's mind to have insights into solving Mysteries and uncovering secrets as well as provides Clues and enlightenment to problem solving(This works for trying to learn or create new abilities) it is only active in the dark or Shadows with a drawback of the user hearing voices which are the source of set insights and enlightenment's it has a negative impact on the user's mind if it is not negated by meditation.(This might be also a good reason for the MC to be a bit of a night owl sleep during the day active during night)

Eyes Of Darkness- a minor Dojutsu that allows the user to completely see in the dark and control Shadows that are in the users sight(I was thinking the eye should look completely black or the symbols of the Deathly Hallows from HP)