mikestrauss
Virtuous
"Not avoidable" is very imprecise wording in a game that uses precise defenses. My instinct would be that means that the effect can't be guarded against and can't be returned. I think it probably can be reduced, which, without checking the rules, is what I believe Resolute does. However, I will admit that I am far from confident in that assessment. Honestly, I am not even certain whether or not I believe a creature could "No effect" Vengeance based on that wording.
-MS
-MS