Ideal solution I've found and use:

Eos on 'steady' mode, spams Embrace on who needs it when its needed, good times. If I need her to AoE Heal, I use Rouse then activate Fey Illumination. This causes her to blast all cooldowns with +40% and +20% healing on her for pretty powerful results.

You have at least 55 seconds to put her back in 'Steady' so she doesnt spam it again, its not hard.

Selene is pretty useless at the moment. She gives a buff on your current skill/spell speed stat, not a flat out 30% on the starting cooldown for the skill, and since nobody really gears for spell speed...