Run around everywhere with heal field, I recommend binding run to M1 after round 5.
Item purchase order
Round 1
[Biotic Field] moves with you and grants you 20% increased Max Life while active.
1,000 
Health Packs grant 20% Move Speed for 5s and 50 Overhealth.
1,500 
1,000 you can play "normal" this round to farm money for next
Round 2
1,000 Health Packs grant 20% Move Speed for 5s and 50 Overhealth.
1,500 1,000 
4,000 
4,000 use extra money on survival or ap to increase healing
Round 3
During [Sprint], [Biotic Field] cooldown refreshes 150% faster.
While using [Sprint], gain Overhealth equal to 5% of your max Life every 1s, up to 25%, for 5s.
10,000 
6,000 you can get "track and field" or "back off" here but you won't do much damage/will die fast with back off until round 5.
Round 4
[Biotic Field] heals allies below 50%% Life 10% more.
10,000 
Dealing Ability Damage applies 30% Healing Reduction for 2s.
10,500 Round 5
Enemies within your [Biotic Field] take damage equal to 100% of its healing output.
run.
Round 6
Round 7
Allies in range of your [Biotic Field] when it spawns gain Overhealth equal to 25% of your max Life for 3s.
