By the way. Gleemax isn't legal. :p I would add 2 more lands, and put 4 Halimar Depths in exhange for 4 islands. Temple of the False God would be great for this deck too. You may consider the Urza's Trio (Urza's Tower, Urza's Mine, and Urza's Power Plant) as well for this deck. Really, it doesn't matter at all, because you only really need 3-4 Islands max. Here's the land breakdown I'd use.


4 Halimar Depths
4 Temple of the False God
4 Urza's Tower
4 Urza's Mine
4 Urza's Power Plant
2 Island
For a total of 22 lands, which is really a better setup. To get the lands in, I'd drop probably 2-3 Mycosynth's, because affinity doesn't stack.