How to get value of last updated row from a table?
From http://dev.mysql.com/doc/refman/5.7/en/trigger-syntax.html:


  Within the trigger body, the OLD and NEW keywords enable you to access
  columns in the rows affected by a trigger. OLD and NEW are MySQL
  extensions to triggers; they are not case sensitive.


So if you want the new rows being inserted on another table, you should use the syntax:

INSERT INTO tbl2 (c1, c2, c3) VALUES (NEW.c1, NEW.c2, NEW.c3);