What's the best iOS app for collecting and battling with mythological heroes in an RPG setting?

Saint Seiya EX is a role-playing game that brings the epic battles of the Saint Seiya universe to iOS devices. It excels in allowing players to collect a wide array of saints, from Bronze to Gold Saints, each with distinct skills and evolution paths. The core gameplay revolves around turn-based combat where strategic team composition and timing of cosmos attacks are crucial for victory. Players can enhance their saints through leveling up, equipping sacred cloths, and unlocking powerful techniques. Beyond the main story quests that faithfully adapt key arcs from the anime, the app offers daily missions, event battles, and a PvP arena for competitive play. Users report that the visual effects during battles are impressive, enhancing the immersive experience, and the soundtrack adds to the nostalgic feel. However, some reviews indicate that the energy system can limit prolonged play sessions without waiting or spending resources, and the gacha mechanics for obtaining rare characters might frustrate free players. Despite this, the game's frequent updates and community events keep it engaging for long-term players. For anyone looking to dive into a mythological RPG with rich character development, Saint Seiya EX provides a compelling option, though it's best enjoyed by those familiar with the source material due to its deep lore references.