Check out the Tier List Explanation for a summary on each tier list placement!
The best of the best, these Servants can be put into any team and will vastly improve team performance by a significant margin. Their team support is so powerful that the most powerful teams revolve around them.
These Servants are among the best at their role. They either perform well in any team, or have access to a powerful specialization for the current state of the game.
Strong Servants with great potential. Typically they have some weaknesses that can be readily compensated for by supports. Against the right opponents or with the right composition, their specializations will outperform higher tier Servants.
The workhorses, Servants with good performance who will shine with the right team and against the right opponents. They typically have a solid niche of their own and can carry a team to victory even against the most difficult opponents.
Solid Servants, who often require more support to fully make use of. They typically face stronger competition in their role, lack the support necessary to show their true potential, or have a distinct weakness in their kit. Regardless, they will easily outperform most lower rarity Servants.
Servants who either have competition too strong for their specialization or who lack a strong specialization. Often they have a future upgrade to look forward to that shifts their placement. They will perform decently nonetheless and still put up a great performance with the right support.