It sounds like you find game mechanics that stop you building insanely buffed minions, frustrating. TCGs are full of cards like this, maybe they just aren’t for you? I don’t mean that to sound spiteful or petulant either, it just sounds like you want to smash and not have anyone stop you.
As a side note, the quest priest currently lingers around a 33-39% win rate, one of the lowest %'s seen for many years. (check hsreplay for the stats if you wish). If you want to know how to beat it? Literally pick any other meta deck in the game right now and you’ll win, more than you will lose.