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.

Promo Options:
NumPad2: Unlimited Mana

Trainer Options:
NumPad1: Unlimited Health
NumPad2: Unlimited Mana
NumPad3: Easy Kills
NumPad4: Instant Reset Raise Dead Cooldown
NumPad5: Game Speed

Editor Options:
Resources: Current Coins
Stats: Current XP

Notes:

EDITOR OPTIONS

To see the current values, make sure you are in the game and playing.  You can then edit the values and press TAB to lock them in.  For XP, to be able to get the rewards when levelling up, make sure to set the XP to a value JUST BELOW the next level up.

Unlimited Health:
Toggle on and the main character has unlimited health.

Unlimited Mana:
Toggle on for unlimited mana.

Easy Kills:
Toggle on and most enemies are easy to kill.

Instant Reset Raise Dead Cooldown:
Toggle on and the cooldown before you can raise the dead is instant.

Game Speed:
Toggle on to speed up gameplay.