Increasing attack Dice on Zone Attacks

[mosa]

I saw a previous post on a Dawnbreaker ring and I just wanted to clarify that there is no way through a ring or something like Hawkeye that you can increase the dice you roll on a zone attack.

[pixelgeek]

AFAIK there is no way to increase the damage on a Zone Attack unless one of the creatures affected has a Damage Modifier trait such as Lightning +2 that would add damage.