It is the very definition of a pay to win game. Everything in this game is costly, upgrading, and removing gear costs so much silver. You never get anything other than a common summoning for heroes, and they seriously want $30 for 1 single epic summoning and two rares. And their "gifts" won't help you progress at all. Their battle pass is pointless; all it does is start a battle automatically, still running through the battle at normal speed, and farming is boring, tedious.