I would neglect permanent control entirely, as the intention of this deck is to simply, as you put it, "kill another player very fast".
For this reason, I would remove the following items:
3 X Steal
Miracle
and put in:
Morning Glory (Nice damage)
Light Pillar (You seem a little low on quanta)
And change the mark back to Light, thus making it mono and solving many problems at once.

Not a bad deck.