Anyone knows to make a lua about psionics?
Sorry i'm worst at lua

About lifting the enemies in air then slowly decreases health while in mid-air
or forget what i'm saying

Look for the CaveCricket48 Gravity Gun (probs integrated in his mod pack by now), weegee's psionics, and the Telekinetic Chip (Azzuki?), those three things have everything you need.

The gravity gun, and telekinetic chip have all sorts of lifting things into the air.
To add the health drain, you'd probably have to use snippets from the health regeneration script (part of medic crab, and seen in the scripting forums, too).

Weegee's psionics have other things, like shields, and disarming.
Telekinetic Chip also has some other features a la Matrix, with firing the bullets back, or something.