Whenever I play this build I also go afk for the first 12 minutes, so that the opponents last a bit longer. After hundreds of matches with this build (easy, since matches only last approximately 12 minutes and 45 seconds) I think I have found the final improvement, which makes this build so effin imba that it's not even funny anymore:
I call it the Queen of Imbaness Stun:
Whenever you encounter an enemy Demigod (who will try run away as soon as he sees you) you must chase him down, even to his health crystal since as QoT you can simply ignore the towers. When you chase him you must constantly change from open form to closed form and to open form again!! This awesome move will make the enemy Demigod stunned with fear which allows you to "mulch" him when you get close enough.
This special move costs 0 (Zero!!) mana, has no cooldown and works on a range depending on how much valium potions the enemy Demigod carries. It's also the reason that the Oak wears a diaper (which you can clearly see at game starting screen).