Talk:Mesa/@comment-178.151.193.186-20160519185114/@comment-27279105-20160523071807

Fleeting R5 + Streamline R5 also gets you max efficiency on draining abilities.

From the Power Efficiency page:

Final Energy Drain = Energy Drain × (2 − Power Efficiency) ÷ Duration)

= 15e/s * (2-190%) / 40%) = 3.75e/s

If you use Transient, Constitution is also fine to counter the drain.