Ravenak's Gnashing Jaws

Summoning: Set up wholly within 8" of caster
Predatory: Can move up to 3D6" and flies. Can
reroll if summoned this turn.
Ravening Hunger: After move, pick 1 unit it
passed across or that is within 1" and roll a dice.
On 2+, if the roll for its move was greater than
that unit's Move characteristic, that unit suffers a number of mortal wounds equal to the difference between that unit's Move characteristic and the
move roll.