Triple Threat

The weapon you use in the casting of this spell is enchanted with the ability to duplicate the next shot fired from it, or duplicate itself if thrown. Initially, this spell grants two duplicates, for a total of three projectiles including the original one, all flying in tandem.

If you land the first attack roll with this weapon, add a number of damage dice equal to the number of duplicates created by the spell (e.g. a longbow would deal 3d10 piercing damage at 1st level). If you miss your first attack, however, you can expend a duplicate to reroll the attack, losing the duplicate in the process; you can repeat this process, trading duplicates for additional rolls, until you have no duplicates left.

Finally, when you hit a creature affected by mirror image with this attack, it immediately destroys as many illusory duplicates as the attack has duplicates, spending them in a similar manner as aforementioned. For example, when a creature has 3 illusory duplicates (as by the mirror image spell), and you hit it with the first level version of this spell, having only two duplicates, two illusory duplicates are destroyed, leaving only one.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher the number of duplicates increases by 1 per slot over 1st (# of Duplicates = level of the spell + 1).