Act 7 Boss Magis Piercing Arrow, Blade of death build

This is my current Piercing Arrow, Blade of death build that got me through Act 7, which is a really tough act in general and where the maps start to outpace your lvl (even with 100 map completion). This boss was a real struggle and took me several attempts. I just barely got through it with practice, rerolling gear stats and a few lucky dodges :) As you can see i ve poured all my mats into pumping piercing arrow dps. Ideally i d want another 5+ link rapid shot to compliment this build. Maybe once I get my pity 6th link. Early on its better to max out 1 skill than trying to lvl both and do half the dmg. You can start this build from Act 4. Before that just use spread shot and link lightning chain or something, with rapid shot for bosses. Timestamps: 0:00 Boss 3:00 Gear 3:53 Runes 4:48 Zodiac 5:54 Map clear