DAKKA! DAKKA! DAKKA!

You'z on a roll! WE NEED MOAR DAKKA! 'DER IZ NEVAH ENOUGH DAKKA!

Each time you roll an unmodified attack roll of 20 in one attack action, immediately make an additional attack against the same target with the same weapon. Attacks from this ability have a -5 hit modifier, does not benefit from your proficiency bonus, and cannot critically hit.