i used : "violent swing" and i was under "unholy strengh" + i got a "all out" in my hand. but for any reason i done only 13 dmg. wasn't supposed to be 23 ? the other player didn't have any armor or block or effect on that can prevent dmg. hope nothing important.
Possible: did Violent Overswing discard the All Out Attack? It would if AoA was your oldest card in hand - so then it wouldn't have any effect.