Mathhammer question. Aren't Lightning Claws better than Power Axes in most cases?
Let's see...
-When Base Strength+1 is twice Toughness (Unit has base S5 somehow, and is attacking something toughness 3): 8/9 >5/6. Lightning Claw wins.
-When Base strength+1 is 1 higher than toughness (Marine vs Marine): 3/4>2/3. Lightning Claw wins
-When Base strength+1 is equal to toughness (Marines vs. Plague Marines): 5/9>1/2. Lightning Claw wins.
-When Base strength+1 is one less than half toughness (Marines v. T8): 11/36<1/3. Power Axe wins.
In cases where none of these are true, the Lightning Claw obviously wins, because the base odds are the same.
So unless your marines are picking a fight with a Knight, doesn't the lightning claw give you better odds? And even if you do survive a Knight's initial attack, is an extra 1/36 chance of wounding going to matter?