My current rotation:

Aetherflow > Raging Strikes > Bio II > Miasma > Bio > Ruin II > Virus > Ruin II > Fester > Ruin II > Energy Drain > Ruin II > (Rouse > Contagion > Ruin > Ruin > Ruin II > Fester > Ruin II) Energy Drain > Ruin spam

I cast Aetherflow before fights start so after my first rotation i have it up again so i can go through my rotation again without having to ruin spam for very long waiting for aetherflow to come back up.