BCEN Tier List Methodology Change

SS
Overall : Game breaking. Will hard carry even as your only uber. You will not need good normal levels, other gacha units, or much skills.

S
Overall : Overwhelmingly powerful. The kind of uber that hard carries most of the game. Always a high priority to own. Has one of the most useful roles in the meta, and is exceedingly good at it.

A+
General : Has the general stats to break large portions of the game, often doing as well or better than specialists in their domain.
Special : Exceptionally good performance in a highly valued role.

A
General : Strikingly better than pseudo-ubers. Will cover your generalist needs most of the time. You will be fine across whole game with this + some good specialists.
Special : Exceptionally good performance in its special role. Can break some relevant challenging stages.

B+
General : Has general qualities that stand out as useful over pseudo-ubers more often than not, with few or minor weaknesses.
Special : Has a relevant role that a solid generalist cannot make up for, and works well.

B
General : Has general qualities that stand out as useful over pseudo-ubers  more often than not, but has weaknesses or drawbacks too.
Special : Has a relevant role that a generalist will likely struggle against, and works satisfactorily.

B-
General : Has general qualities that stand out as useful over pseudo-ubers a decent amount of the time, but has notable weaknesses or drawbacks too.
Special : Has a somewhat relevant role that a generalist is not best equipped to tackle, and works decently.

C+
General : A bit better than pseudo-ubers, but not so much so that you'd want to pick one of these over a more specialised unit.
Special : Role is rarely useful but has some significance, and is rather good at it.

C
General : About on par with pseudo-ubers, or worse but with some redeeming qualities.
Special : Role is rarely useful but has some significance. Works but isn't great.

xD
General : Worse in general use than pseudo-ubers with no redeeming qualities.
Special : If it has a specialst role, it is either really bad at it, or it is of limited relevance, or both.