Anyone involved in gambling of any sort or for any reason would do well to quit such activity immediately, and thus avoid financial disaster and the breakup of his family.
Is it “okay” to study or show interest in things such as taro cards and spells, also ghosts and hauntings?*
Playing with taro cards and the like is playing into the hands of the adversary and is contrary to the will of the Lord.
If martial arts as used as sports they would not be explicitly against the doctrine of the Mormon Church
Scriptures warn against wasting flesh when you have no need of it, but whether fishing is sinful is a matter of conscience to figure out yourself.