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One of my players insists on using it with his sorcerer but I think it's meant to be used with physical attacks, maybe ray spells.
What do you guys think?

Vengeful - Benefit(s): Whenever you strike the last creature that damaged you in the past 24 hours, you gain a +1 trait bonus on damage rolls against that creature.

I've got a doubt about grappling that I couldn't solve by myself with the help of the FAQ or the rulebook:

The FAQ says that a grappled creature can do a full attack. Does this apply to the one that initiated the grapple, the one that was grappled or both?

Becouse the initiator has the Damage action after mantaining the grapple that only does the damage of one attack, and I think it would be contradictory.

Thanks.