Collectible Card Game Headquarters

Describe the Bug:
It caused the opponent to sacrifice his Rules Engine card.

Which card did behave improperly ?
Tyrant of Discord (or maybe Rules Engine)

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
2014/05/06: Journey into Nyx

What exactly should be the correct behavior/interaction ?
Rules Engine should not be considered a permanent

Are any other cards possibly affected by this bug ?
-

Did this fix this?

I confirm it with your savegame (didn't test clean).

Fixed in 588dd19