You need to get the Black Knights because they are the strongest knights.
You need an Autogun first. Search that on the Spiral Knights wiki, then follow the steps from there.
Yes they did
Land and serfs.
In the olden days it was used for entertainment.
because they need to
Starting as a boy, you need to come from a wealthy family in order to be a knight. Knights are from wealthy familys.
No, because you need the three knights to go with you. (see related question)
you need to defeat the dragon
The Laser Lance.
they slaged a monsster
Knights, because ninjas are not actually fighters. Ninjas that fight are myths. Ninjas only fight if they need to defend themselves.
it was because they had to let the knights be in battle to kill each other and let them die, because they need to.