Fell Bats

This unit can retreat and still charge later in the turn. In addition, at the end of any phase, if any enemy models were slain by wounds caused by this unit's attacks in that phase, add 1 to the Attacks characteristics of this unit's Elongated Fangs for the test of the battle.

This unit can fly.

Each time this unit fights, after all of its attacks have been resolved, you can heal up to a number of wounds allocated to this unit equal to the number of wounds and mortal wounds caused by those attacks that were allocated to enemy units (to a maximum of 6).