So this, is a status that is given to both clan pets, on their faction respectively. Notice how it says “until your next turn”, meaning it can be used as both offensive AND defensive.
The bug here is, if the opponent puts down another action card, the effect of either clan pets gets nullified, causing all cards affected by the action card turn back to normal.
No idea if this is a bug only I appear to have experienced, but it’s quite surprising and disappointing at the same time that I have lost a card match due to this bug.