Master A. (師匠 Shishō Teacher) is an enemy that only appears in event stages and the Stories of Legend.
Uses his long, salivating tongue like a whip. Kind of gross considering his description.
His attacks are long-ranged, long enough to hit Bahamut (by a single point, suggesting that it was meant to be a Bahamut killer) and is exceptionally fast at hitting multiple units. However, very high range cats like Hacker Cat, Megaphrodite and Diabolic Gao can attack with impunity and will easily take down Master A.
Knows all the dirty stuff. His friends from middle school admire him and call him master. Dating experience: zero.
Can someone who knows that naughty. There is no erotic Dr. Junior high school. friends called master and respected. But still no experience dealt with women.
You need to spam stallers to block Master A. and summon stronger and longer-ranged cats. Strong and tanky units that do not get knocked back easily (such as Titan Cat), Cow Cat, or extremely long-ranged units are needed to take this enemy down (such as Hacker cat or Prisoner as a non-gacha alternative), otherwise you will either take forever or get out-stalled by other enemies. Bahamut's range is 1 point less than Master A, so he is a bad choice against this enemy, and he will most likely get knocked back or even killed before finishing his attack. Sometimes, however, you can get lucky and heavily damage Master A.
Holy Valkyrie Cat can help a lot; however, if the stopping ability doesn't trigger, it might be a little bad. Awakened Bahamut is very effective against a single or close huddle of Master As because of his quick movement speed being enough to dodge his attack and deal massive damage against it easily. Sanada Yukimura can also do the same alongside Express Cat.
Stacking Rocker Cat is a good idea because he has decent health and damage. By the time Master A. kills one Rocker, another will be there. Rocker Cat - Artist Cat - Ramen Cat. (Ramen is most effective.)