This weapon deals an additional 3 damage when it’s used to score a hit against a Giant.
A heavy crossbow takes one combat round to load after being fired. Therefore, a player using any type of heavy crossbow (mundane, magical, Dwarven, etc.) will only be able to attack every other round. Even if a player has multiple heavy crossbow tokens, the cumbersome nature of this weapon–changing from heavy crossbow to heavy crossbow–will still incur a combat round penalty.