Ruling Yvetal Breakthrough vs accelgor wobbuffet

[zapper1998]

Hello!

If Player A has a Yvetal Breakthrough active with 70 damage and a fight fury belt attached to it, and Player B deck and covers with his/her Accelgor and promotes woubbuffet, how does the in between turn play out? Is the yvetal knocked out first from poison? Or does the woubbuffet come active, turning off freight night giving the yvetal plus 40 hp? Here are links to cards in question,
http://shop.tcgplayer.com/pokemon/dark-explorers/accelgor ,
http://shop.tcgplayer.com/pokemon/xy-breakthrough/yveltal ,
http://shop.tcgplayer.com/pokemon/xy-phantom-forces/wobbuffet
http://shop.tcgplayer.com/pokemon/xy-breakpoint/fighting-fury-belt

Thanks in advance!

 

[Asclepius24]

Wobbuffet becomes Active before the turn ends as part of the resolution of Deck and Cover. Fright Night turns off and Fighting Fury Belt is "on" before the turn ends so Yveltal has 170 HP going into the time between turns when Poison check happens.