How about Curse of Exhaustion? An opponent can only cast one spell per turn, to add to the annoyance. :)

You should use Gaddock Teeg in Tiny Leaders. This deck would kill there, and the first ability ruins people's days.

iBurgerKing: I feel like you're joking. Considering Tiny Leaders tops out at CMC 3, Gaddock Teeg's first ability is useless (4 or greater). His second ability is more useful in TL, stopping things like Entreat the Angels, Bonfire of the Damned, Martial Coup, Gaze of Granite, stuff like that.

its a fun take on a teeg deck. i just recently found this commander myself and have been looking for fun ways to run him, i like the deck list you've put together. it does hurt that you have to have your own commander off feild to actually play some of the cards in the deck, but its a small stipulation really for the total mana drain you're putting on your opponents

Trinisphere is +3 quite often, with Knowledge Pool it could go up to +6. With Chalice of the Void and Sanctum Prelate you could lock more spells out.

ew.. +1

Altar of Dementia seems to be a really good add. Really good alternate win combo with Reveillark and Karmic Guide. Sac the guide, then sac the elemental to bring back guide which brings back the elemental. Infinite mill. It looks like your opponents will already be pissed at you, so adding this combo may be an act of mercy. Ashnod's Altar Might be pretty handy too, since I hear making things cost X more isn't really effective against infinite mana.

Just some suggestions. Over all, 10/10 would auto scoop.