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I wouldn't think so, maybe a case could be made for your ale giving a plus 1 and going to 13, but that's up to the game master.

ok, so I run over to the ballista and start maneuvering things around. I aim for the ogre in F2 and hop for the best. Fire away...
@rolld20

Shake shake shake, you roll the 20-sided die.

You rolled a 7.

that is a hit for 8 damage!

Boom!

another attack at the same ogre, fire away!

@rolld20

Shake shake shake, you roll the 20-sided die.

You rolled a 3.

1 more hit for a total of 16 damage.

technically not correct but a allows it. the 12 is on the crew and the weapon, it has a goblin on it but they are moving away from it. but your rolls was so good so no the less its two hits. whit a human operating it. it has a hit chance of +5

yes a like outside the box thinking way not..:)