i think it did not came from OCA's, i saw a GR card inserted in Boitata armor? Boitata Armors became NO SLOT when the server launched, so how come does he have GR card that came from OCA that is inserted in a NO slot boitata armor then, and also Maya Purples, yes alot of them.
~ This is just my opinion on what i just saw
Maybe because it came from Mystical Card Album. Maya Purple card can also be obtained via Mystical Card Album as well along with other mini-boss cards.