Mephisto SP3 two power bar drains the opponent only the first time in a fight?

35six7

Just discovered that Mephisto SP3 power drains only works the first time in a fight, is it because it needs to be awakened to be able to work properly? Or is it a glitch?

DNA3000

I must admit I sometimes make this mistake, but I usually catch it before I get to the point of posting about it.

Go back and read the power description. Very slowly, very carefully, from the beginning.