Some time may be 100% luck and 0% skills required to win in gambling like dice games. So it is purely luck game not skill game.

Dice game is purely luck. You need some skills in poker games such as bluffing. It is difficult to master.

Poker involves skill.
You have professional poker players, who make a living out of it.
You can't say that about dice players.

Yes, poker players use their skill to make their own "luck."