MapleStory : Path of the Hunter...?

474 mobs, yea, you'll be done with it within a few weeks or months. Not much, but i find it better than the horribly low drop rate fom before. Especially from bosses. At least you can have all the information you need withing some minutes.

Edit: Also, the World Tour cards no longer are pixelated. They're like the KMS ones now.

Months only if you're considering the monster cards of bosses like pink bean, Chaos Zakum / HT (if they got their own cards). Otherwise, if shikage got 100 out of 474 cards in a few hours, you will be done with almost all cards in just a few days.