I tried to rebuild the Ana Build from ML7's Video. I hope i got everything right. :) The Video ends after the 5th Round so i dont know what he would've picked for Round 6/7. ML7 Video: https://www.youtube.com/watch?v=J6puPe4BTTo
Item purchase order
Round 1
[Sleep Dart] can hit allies, healing 80% of their max Life over 4s instead of putting them to sleep.
1,500 
1,000 
1,000 Round 2
1,500 1,000 1,000 
4,500 
[Sleep Dart] gains: 500% Collision Size 100% Projectile Speed 20% Sleep Duration
10,000 Tranquilizer is a must pick. If you dont have enough money for Ability Tool go for a cheaper option like Custom Stock or use some green ones like in Round 1.
Round 3
[Sleep Dart] explodes on contact, hitting targets within 3m, but Sleep has a 50% reduced duration.
4,500 
Unscoped [Biotic Rifle] projectiles are 100% larger.
5,000 
[Sleep Dart] direct hit deals 100 bonus damage.
9,000 1,500 1,000 Round 4
1,500 1,000 
4,000 
14,000 sometimes you wont have enough money for Energized Bracers if so just skip it.
Round 5
[Nano Boost] also applies to yourself for 50% of its duration.
Unscoped [Biotic Rifle] projectiles are 100% larger.
5,000 [Sleep Dart] direct hit deals 100 bonus damage.
9,000 4,000 
6,000 
Dealing Ability Damage applies 30% Healing Reduction for 2s.
10,500 
Dealing Ability Damage slows the target's Move Speed by 20% for 3s.
11,000 1,000 Round 6
Round 7
[Nano Boost] also affects other allies in your line of sight, but it has a 50% reduced duration on them.
Description
Sleepdart gets alot more options to use it and will be way easier to hit.
This Guide uses a Video from ML7 so dont expect enough money for every round.
