- 1 Kycoo
+ 1 Treeborn Frog (can be used as tribute bait when Magical Dimension is not working)

- 1 Monster Gate
+ 1 Reasoning (Don't have to sacrafice a monster and your opponent will still have to guess the correct star value)

Maybe
- 1 Smashing Ground
+ 1 Magical Dimension (Destroy opponents monster and special summon on of your own)

- 1 Magic cylinder
+1 Ring of Destruction

Of course make sure your deck still has the same flow by running three to five test matches.

Hmmm... DMs....

A fourth of the deck can't be played without tribute... Running something like this takes some balls.

I'd start by cutting the Dark Magician Girls for Chaos Command Magicians. Chaos Command Magician has a higher attack and a decent effect, and unless you plan on running Sages Stone there is little point in having them in here aside from flavor value.

Kazejin, that one gate guardian piece just so happens to be a level 7 spellcaster with a nasty effect. We might as well give it a shot.

I wish spellcasters had another lvl 8 pick, aside from Silent Magician Level 8.

In order to add some consistancy to this deck I'd suggest main decking three Toon Table of Contents alongside a pair of Toon Gemini Elves. They're pretty beasy spellcasters and they'd allow you to have a target for Magical Dimension more often than not.

I'd also like to see another copy or two of Reasoning in here. The opponent has a roughly even split as far as levels go and your only lvl 8 monster just so happens to be your best Reasoning pull, so it'll generally resolve in your favor.

Three Magician's Circle seems to be a bit much to me.

Gravekeeper's Guard and Spy could fit nicely in here, as could Peten the Dark Clown.

Well Chaos Command Magician is a Light monster, and he said he wanted to utilize the effect of Deck Devastation Virus. The only recommendation I have is:
+1 Reasoning
-1 Smashing Ground

You have alot of field presence already with the Circles, Dimension, recursion cards, and Apprentices, so no Treeborn is necessary. Plus with the Circles having to wait for the right timing, and the Swords, Call, and Prem, you probably wouldn't be able to get the most out of Treeborn anyways.

Nice build.