Yes, by accuracy Venn means they'll hit the targets more often/makes it miss landings hits less likely.
As for your second question about battle and agility, the answer is no, not battlewise
Battle is only good for increased damage
agility only decreases the chance of your wolf getting hit. However agility is also needed to fish successfully
Nothing really makes the prey's likelyhood of evading happen less, but the more resolve will help in a way I suppose depending on how you look at it. but it helps the wolf's accuracy of landing hits, so it could seem as if the prey dodges less often.
If you don't have any resolve, or a good amount of it, your wolves will have trouble landing hits at a normal, or helpful rate.
Winter Month: 3 
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