Chronofrag

A chronofrag is a result of chronoporting units through time. If a unit is chronoported back in time and appears in a space already occupied by a unit, the unit with the least health is destroyed. The destroyed unit's health is subtracted from the surviving unit's health. If the units have the same health, the one that time traveled lives with 1 hp. Chronofragging your unit's past self is a big problem since it creates a grandfather paradox.