Talk:Zephyr/@comment-31.205.98.77-20121208115810/@comment-174.7.127.219-20121209185052

Infinity Edge as a first damage purchase can increase auto attack DPS by 2.5-3x. If it is your only critical item it increases your auto attacks by 1.4x your AD. No other BF sword upgrade will have such a dramatic effect on auto attack dps.

If PD is your second buy, it will double your auto attacks again, so essentially IE + PD = 5-6x your DPS without items.

Criticals are still far and away the best damage source for auto attackers.

To your second point on assassins, your team should have tanks and peelers to keep them away from you. Make sure they're doing thier job, because no amount of survivability will protect you from them in 1-on-1 situations.