Recent reviews by Ah Bert

https://www.ign.com/articles/maplestory-nexon-loot-boxes-korean-ftc

20% drop rate, did almost 25 round for one of the mats to craft a descendants.

It's not the first time Nexon manipulate drop rates to push player into MTX so you would pay for one descendants.

It also won't be the last time they do everything to squeeze from players.

Pro
Gameplay+nice cosmetics

Cons
Generic story
Gunplay sound same
Animation don't sync with sound
Etc