WKC borrows heavily from not just FFXII, but also from other Square games, such as Final Fantasy VII (the story) and Xenogears (the knights). You'll notice the FFXII similarities almost immediately when you realize the combat system is practically identical, save for the targeting lines. Combat is turn-based, but engaged in real-time, just like FFXII. There is even a small set of gambits you can enable for your A.I. fighters, allowing to either heal first, fight as they please, attack only your target, and a few more.