Arena freez bug

On turn 9 i freez the enemy Portal Keepr with my Frozen Shadoweaver but nothing happened, next turn enemy could attack whit that minion.

did he have living dragonbreath?
Common · Minion · Descent of Dragons · Your minions can

There was a link to an HS replay in the title, but it is unclickable, because it is par of the title. @Darage: next time, use backwards quotes `like this` to surround links, https://hsreplay.net/replay/T8fjMY22bikTCULrFUeED3 It was very informative, thanks for sharing it.

Your opponent did indeed have Living Dragonbreath in play. You chose to freeze the other minion (Portal Keeper) with Forzen Shadowweaver’s Battlecry and then kill the Dragonbreath. If you had attacked the Dragonbreath first, your could have frozen the Portal Keeper.