help i need some good enemys with pierce so i wonder at wich level i would get a good monster with pierce like a tallow.

The higher your level, the better a chance you have of getting new and better cards. What cards you can get if affected by your section ID as well. All you can do is keep playing matches and hope to get a good card. If hunters are giving you trouble, look into cards with rampage. This effect hits all items they have equipped, and is more recommendable to use.

The most common seen, yet one of the hardest to get, is Tollaw, pierce is a rare effect, however, is not fundamental, if you really want pierce, play till you get Reiz, otherwise, Photon Claw may do

P.S.: Gi/Ra Foie pierce, and ive found Gifoie extremelly common