I like it, although I feel like some of the word choices are too long. You could easily substitute some of the higher-syllable words for better flow. 

[hider=I know you did not ask, but just a suggestion]This in an ode to our saviour and king
Who built a new world for all the guild-kin
He slew the script mages and the bug dragon
Saving us all from [i]bored[/i] ob-liv-ion

The troubles began when [i]lord[/i] Mahz was betrayed
When the [i]armies of[/i] Adsense [i]began[/i] to invade
He [i]ravaged[/i] our kingdom [i]with unholy crusade[/i]
But soon he fell to our lord Mahz's Blade

Now Mahz rebuilds his kingdom[i], a new design[/i]
So that the stories continue of all the guild kind
 I cannot debug nor program script
So I wrote this song as a musical gift[/hider]