Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.
NumPad1: Infinite Health
NumPad2: One Hit Kills
NumPad3: Change Gold By 500
NumPad4: Super Health
Infinite Health: While active all team members have infinite health during combat.
One Hit Kills: In combat press this option, wait 1 seconds, the option will deactivate itself. All enemies have low health.
Change Gold: At city where your gold is shown at the top press hotkey to add more.
Super Health: While this option is active the maximum health is set to the value specified on the trainer GUI. Use this if you want your units to resist high amount of damage. You can define the amount the trainer writes to on the trainer GUI. This has to be done BEFORE trainer activation!
Unlock more trainer options including updates from here - Pit People Trainer