Gravity's hotter sisters is a mod that adds four new spells to the game.

Lift: Throw things up into the air.

Force: Throw things backwards.

Crush: Crush them into the ground.

Inversion: Invert them so they're inside your radius.

Do note, all of the spells have pretty high range, excluding force.

Lift makes them have constant force upward.

Crush makes them have so much force downwards, they're crushed into the floor.

Casting:

You can cast a spell by selecting the hand you want to use and choosing a spell. You can do it on the ground or the air. You can also use both hands at once.

If you want to have the full effect of the spells, cast them both at once.