Collectible Card Game Headquarters

Describe the Bug:
Cultural Exchange targets the creatures selected(tested for owner's creature).

Which card did behave improperly ?
Cultural Exchange

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2014/12/20: Commanding 2014 Urzas,duel

What exactly should be the correct behavior/interaction ?
Cultural Exchange targets only player it selects creatures from both players.

Are any other cards possibly affected by this bug ?
-
Savegame corrupted

Similarly, it requires both players have creatures in order to be cast. Since you can choose any number of creatures, that number should be able to be zero.

All fixed in 1bca2bb