Yanfly Engine Plugins is a plugin library made for RPG Maker MV, a wonderful piece of software to help you make that role playing game of your dreams. You can find out more about RPG Maker MV here.
Octopath Traveler is praised often for its battle system. Everything about it just seems to fit together just right. Yet, you would be surprised to hear that it actually does nothing new, but instead, aims to make the whole battle experience more cohesive where the whole is greater than the sum of its parts.