I'm trying to find an old game I used to play (either late 2000s or early 2010s, I think). It was an MMO, and sort of a card collector game, except you didn't have a 'card field' like in, say Hearthstone; rather, every card was a unit that you'd place on a lane. I remember there were like, beastmen (mainly remembering catgirls), think there were undead/demons, vampires, elves, ogres etc. I remember there were co-op modes against 'boss' opponents, and I think there was a PvP mode.