Activating this trainer

If not state otherwise below, press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.

Trainer Options

# Player 
     NumPad1: Invincible
     NumPad2: Unlimited Health
     NumPad3: Unlimited Mana
     NumPad4: Unlimited Orbs

Editor Options

# Player Stats 
     Health
     Orbs
     Mana

# Currency 
     Gold

# Player Progression 
     EXP
     Next EXP

Notes

Probably best to NOT freeze values in the editor.

Invincible:
When on your character will blink and most attacks and things that would normally cause the health to lower as well as would knock you back are avoided. Certain things are scripted deaths and cannot be avoided.

Health:
Player Stats are based on EXP.

EXP:
EXP will determine max values, stats, and also your level, among other things.

Next EXP:
Next EXP is for reference mainly.  The value shown here will depend on your current EXP.