the conversion spell

The conversion spell is a way to take the control of an enemy unit. The unit will be one of your units. Buildings can be converted too.

To convert an enemy unit:
1. select a mage for orders
2. select the conversion order
3. select an enemy unit or building as a target (warning: if you are selecting a mobile unit in a currently unobserved square, the unit might be actually elsewhere and the order will be canceled when the mage arrives in the square)
4. validate the order

Note: at the moment, the mage can use this spell after a research by the mages tower; but, later, conversion might be the ability of another unit (when the units, buildings and tech tree have been reorganized).