Beginner guide
Plan your formation around compatible elements and races. Compare PVE progression and PVP needs separately; resources spent on a favourite unit should still improve a functioning squad.
Your first objective
Make a functional team before chasing a perfect account. Start with the current story objective, identify the damage source and the support or survival tools it needs, then check the actual requirements of that stage. A high tier in one mode does not guarantee the same result in a different encounter.
A practical sequence
Finish the tutorial and learn the resource cycle of the characters already available. Open one linked character page, check its skill conditions and equipment recommendations, and choose a small number of upgrades. Try the same stage again. If the team fails, identify whether the problem is survival, resource recovery, turn order or damage before changing the whole roster.
Before spending resources
Use early rewards to remove a specific progression bottleneck. Keep rare upgrade materials for characters you intend to use and verify that the desired improvement is unlocked. Equipment main stats, passive conditions and the selected game mode matter together. Treat the examples below as pages to study, rather than a suggested lineup or a permanent ranking.