You're reading it wrong. It's

> וכן למר / and also for Mar.

When you wished the Bam community a good _Adar_, Isaac noted that Mar also deserved a good _Adar_. After all, he was an important part of the entire Purim story. He's the one who originally ([_Gitin_ 62 _amud_ 2](http://hebrewbooks.org/shas.aspx?mesechta=19&daf=62b&format=text)) said Haman deserved no honor:

> אמר מר נוטל הימנה כדי / Mar said Haman gets nothing;

in fact, when everyone else was bowing to Haman, he ([_Kidushin_ 33 _amud_ 1](http://hebrewbooks.org/shas.aspx?mesechta=20&daf=33&format=text)) stood erect:

> אמר מר יכול יעמוד מפניו / Mar said it's possible to stand before him.

Later, when Haman was to lead Mordechai around on a horse, it was Mar who ([_Avoda Zara_ 29 _amud_ 1](http://hebrewbooks.org/shas.aspx?mesechta=27&daf=29&format=text)) suggested that Haman first cut Mordechai 's hair:

> אמר מר ישראל המסתפר מעובד כוכבים / Mar said a Jew should get a haircut from a gentile.

He was there at Esther's party to ([_Z'vachim_ 116 _amud_ 2](http://hebrewbooks.org/shas.aspx?mesechta=29&daf=116b&format=text)) expose Haman:

> אמר מר ועובדי כוכבים בזמן הזה רשאין / Mar said idolators nowadays are evildoers.

When _Achashverosh_ heard that, he left the party for a turn in the garden, but Mar was still there ([_Horayos_ 13 _amud_ 2](http://hebrewbooks.org/shas.aspx?mesechta=28&daf=13b&format=text)) when _Achashverosh_ returned:

> אמר מר יצא לצורך נכנס ויושב במקומו / Mar said, he left for a purpose and entered; let him sit in his place,

upon which ([_Bava Kama_ 13 _amud_ 2](http://hebrewbooks.org/shas.aspx?mesechta=21&daf=13b&format=text)) Mar suggested getting rid of Haman:

> אמר מר כשהזיק חב המזיק / Mar said the one who damages is liable to be damaged,

and ([_Z'vachim_ 116 _amud_ 2](http://hebrewbooks.org/shas.aspx?mesechta=29&daf=116b&format=text)) announced Haman's death:

> אמר מר אין לך כל שר ונגיד / Mar said you have no minister or officer.

After that, he was instrumental in setting up Purim as a holiday. He's the one who suggested ([_Rosh Hashana_ 20 _amud_ 2](http://hebrewbooks.org/shas.aspx?mesechta=9&daf=20b&format=text)) reading the _m'gila_ twice:

> אמר מר צריך שיהא לילה ויום / Mar said it must be done night and day;

he's the one who suggested ([_Bava M'tzia_ 23 _amud_ 2](http://hebrewbooks.org/shas.aspx?mesechta=22&daf=23b&format=text)) how we should celebrate on Purim:

> אמר מר חביות של יין / Mar said, barrels of wine!

and he's even the one who ([_Chagiga_ 4 _amud_ 1](http://hebrewbooks.org/shas.aspx?mesechta=13&daf=4&format=text)) instituted the practice of having a second reading of "_Zachor_" for women:

> אמר מר זכור להוציא את הנשים/ Mar said "_Zachor_" to exempt the women.

Of course he deserves a happy _Adar_!