A Look at Monster Book

Ahh ok, so someone who is as unlucky as me might loot all 5 without getting the special buff even once. lol

mm...
Ok, here's how it works.
All 5 cards give you the buff. But only if the monster is over level 30. That's why I said sometimes. XD
ONLY the last card gives you the Experience boost. The experience boost appears as a timer counting down right under your buffs, but it's separate. It also shows up in your quest log as "In progress" but it expires when the EXP boost runs out. I don't really get why they did it like that but that's how it is lol.