Listen: All MMOs in existence are Grinds. If, at anytime, you play with your sights set on a specific goal and then do content over and over to reach that goal then that is a grind. We all did it in Single Player RPGs for farming random battles, and we all do it here. If you play League, Heroes, DOTA, Hearthstone, Destiny, Monster Hunter, Pokemon, Tales of (Series), then you will eventually grind on something. It doesn't matter if it's Monster carves for the next piece of gear, individual games for an overall online rank, Walking a path over and over to hatch a perfect IV Pokemon, or farm easy battles to XP, it's all grinding.