I've been playing pokemon trading card game online since 2014 and in 2016 i left the game.
Now i decided to go back to see how the game are now but when i look at my collection some of my cards vanished for no reason; I'm pretty sure that i didn't trade none of then because they are in use in one of my decks but suddenly they're gone and now my deck have a exclamation point in it and those cards that i lost are in black and white.
The cards are:
2 hydreigon with the hability dark impulse (from the phanton forces expansion)
2 noivern with the hability echolocation (from the furious fists expansion)
1 noivern with second bite and sonic bazooka (i don't know the expansion)
could anyone please help me?