secret_1_reader

Mental pollution

have a seal that actively/passively absorb kinetic energy on user to convent in chakra or release in taijutsu

Genjutsu that takes away target common sense for a certain amount of time.

Create a living clone using cells and seals ... if one dies other can be used in its place.

Seal containing Self replicating glitter.

Item seals on skin.

A self-hypnosis genjustu for those who are lacking willpower

Create a genjustu for calming mind or having a dream space to sort out your feelings i.e. can be used for Psychology.

You could develop Earth release such as you can make walls using your feet without hand signs or create a seismic wave for scouting.

You could make good use of chakra threads to form arrows, control people movement like dolls, or create spears.