This may be a very silly question but I'm a bit confused by the wording for 'forceful.' Do I roll extra die for each subsequent attack or do I just add +1/+2 for each die used in the weapon.
2d6
2d6,2d6
2d6,2d6,2d6
or
2d6
2d6+2
2d6+4
Original wording:
This weapon becomes more dangerous as you build momentum. When you attack with it more than once on your turn, the second attack gains a circumstance bonus to damage equal to the number of weapon damage dice, and each subsequent attack gains a circumstance bonus to damage equal to double the number of weapon damage dice.
