How does an unplayable card gain exp?

[TripSin]

Edit: Nevermind, it gains xp every time it is activated, including getting multiple xp per turn if it is activated multiple times in a turn. I should've tested it before posting and apparently you can't delete posts here or at least I don't see the option...

For example, Rook's card "Helmet" (whenever you prepare a card, +2 composure on random argument). I'm assuming it only gets xp when it is activated? What if you activate it multiple times in one turn, e.g. if I prepare three cards with it in my hand does it gain 3 xp? My guess right now is that it seems to be limited to one xp per turn, which doesn't quite make sense.