Bigbomm [Legends]

A model equipped with a bigbomm can drop it as it flies over enemy units in its Movement phase After the model has moved, pick one enemy unit that it flew over. then, roll a D6 for each model in the enemy unit (up to a Max of 5 dice). For Each roll of a 5+, the target unit suffers 1 mortal wound. It can only do this once per battle.