I love the system they are trying to implement, the customisation potential is huge, i also like the idea of using tarot cards as a visual representation
I would like to know more about how melee combat works, for what i understood the magic system is a completely different thing but melee is included in the skill system right? (correct me if i am wrong) What i'm curious about is how the combos/attacks chain with one another, like if there are keys for each card to have let's say 3 different combos and 3 different buttons to start them (if you have 3 melee attack cards) or if there is a single combo but you can freely chain in it all the 3 skills with their respective power ups. So yeah i hope they will talk more about that in the future.
I like that you can obtain cards doing all sort of activities because this means that you are free to play the game at your own pace and way (what if i want to be a vampire obsessed with ancient history and want just to explore the game locations in my playthrough?) and still obtain skills to help you just like any other player that maybe prefer other activities.
Of course special cards should have their own condition to obtain them and that is fair (like defeating a boss for example), i just hope the drops for these cards are guaranteed and not RNG related, it would be pretty insufferable to spend an evening trying to accomplish whatever the game is asking just to realise that you are not in the xx percentage to have the card dropped.
I also like the idea of having special requirements for obtaining a certain card, i hope those requirements will be related to lore and story though. I hate the kind requests like "you have to kill xx enemies", "find xx plants" ecc. (come on this system is potentially endless already there is no need to such trivial things, they would just pull players away imho)
As for the "one in a time cards", i think it ulimately depends on how it is implemented and what exactly that means.
The problem with this like others mentioned is that is purely based on luck and how much time you play the game, not the individuals proficency of the players or their tenacity in the way of earning it. I would gladly bow to someone who proved greater skills in playing the game than me rather that realising i couldn't obtain it myself becouse i have a job and a life. I wouldn't mind much if it's cosmetic only though.
But we still do not know the details of this: maybe the cards have a limited number of use and after that is lost and another player may attempt to take it. Maybe the use is ulimited but there is a timer on it, and is lost again once it's expired. Maybe it's lost once a player dies (witch would require clearence about what death means, if true death or just loss of phisycal form). Maybe all the options that i just come up with, we don't know yet. So "one in a time" is something to be defined, i will wait for more infos.
Anyway i think it's positive to give everyone a chance to have them, at the very least one player has the possibiity to obtain it once in a while (even if you have to race against 1 million other players you still have in theory your chance to have it), i imagine the server would go crazy once it's confirmed that such a card is free again for the taking for those brave and skillful enough. In the long run i think it would benefit the game longevity more than just having one player forever keeping it, maybe someone who is not even playing anymore (and if these one time cards are related to character death i think this issue would require the developers attention).