So, I used GPT-5.6 to vibe code an app (called Replay Coach) that helped me analyze my match performance. Replay Coach also tracks removal, which refers to cards that can destroy creatures or counter other cards, especially board wipes that destroy all the creatures currently in play. The concept of Replay Coach is simple, but the hardest part of its development was making it generate useful game recaps. As you might expect, I gave it instructions to act as a Magic coach, analyzing submitted coaching packets and providing helpful advice to a new player. Try Replay Coach (Or Vibe Code Your Own App)If you’re interested in using Replay Coach or playing around with its code, you can download it here, and you can access my MTGA Coach Custom GPT here.