Furious Fiss Sylveon Echoed Voice

[SamusAran28]

When Sylveon from Furious Fists uses echoed voice, do all the following turns using that attack stay at 100, or does it compound eg turn 1: 50 turn 2:100 turn 3:150 etc?


MY TRADE THREAD:
http://pokegym.net/forums/showthread.php?t=184711

 

[PokePop]

Each effect only lasts the one turn.
The effects don't stay working and compound on top of each other.

It would be 50, 100, 100, 100, etc.