Neutral Special - Ink shot - Inkling shoots a burst of ink from their gun, slowly draining the ink tank which means they will need to use Down Special to refill it.
Side Special - Ink Bomb - Inkling Tosses a small ink bomb as far as the player holds the Special button. After a short time it will explode.
Up Special - Launch - Inkling transforms into a Squid an gets launched in a direction the player presses after the move is active, Like Pit's Fly ability.
Down Special - Squid - Transform into a Squid. While in this form you can go under players, charge your ink tank, avoid high hits, and jump like a squid! If hit, you transform back.
This blog has potential to be great and featured if you added more detail. I would suggest adding design and clothing ideas and more and then submit it again.