Seriously, Krypton? Read above posts. Yes, Ab Sword's 10% bonuses are based off current troop levels, not your BTA stats. So at pin, Ab Sword's bonuses are dirt and don't help to such an appreciable extent. But the Feather Sword would still grant its same static bonus.
The feather gets 4 max upgrades right? It has like 10m atk and lesser spy atk, The other sword adds 10% GO TO YOUR PROFILE AND CHECK YOUR ATTACK MULTIPLE YOUR ATTACK BY .10 IF ITS MORE THAN YOURE FEATHER USE THE 10% SWORD ESPECIALLY IF YOUR SPY IS THE SAME WAY
Fully upgraded feather is best. I don't care how high attack stats are, it's made of ****ing diamonds and that's just a shitty purple knife.
The. Abyssal sword is only good when you have high troops and decreases with troops, whist the feather Is PERMANENT