Enter the Machine
Bonus damage only occurs on the following three types of attacks: attacks with a large object, Linked attacks, and most superpowered attacks.
After resolving the initial attack, assuming it hits (even with just a Scratch), the attacker can make a Bonus Damage roll against the defender’s Resistance. The attacker rolls 4dF (4d3-8) and adds the following bonuses:
If the attack was made with a heavy object, the bonus is equal to +1 per 100 lbs. of the object.
If the attack was made with a superpowered attack, the bonus is equal to the power’s rank – 1.
The defender opposes this with a Resistance check.
If the attacker wins by 1 or more, the defender takes that many Scratches, upgrading them to Hurts and higher as necessary (see Damage Capacity, above).