I have just one question... how does a bounce spell such as Capsize become a "Direct Damage" spell in your mind?
Hehe, a programming mistake in my deck exporter, I fixed my list
Why Dark Depths? It doesn't seem like you can generate an especially large amount of mana.
No Slave of Bolas? C'mon now. That's just not cool.
I've resolved Dark Depths 2 times, I can't generate an expecially large amount of mana quickly, but with time, I can. I play mostly against Grand Arbiter Augustin IV deck, so while I'm trying to unlock, I can still use remaining mana to do something.
About Slave of Bolas, yeah I have it, I don't just know why I didn't add it. I've replaced Dominate with it. Thank you, more flavor
(Sorry for my bad English, it's not my primary language)
It's a shame you are limiting yourself by not using any creatures...some stuff like Izzet Chronarch would be really good for this deck. Is the theme something to do with Bolas? I don't really keep up with the storyline as much as I would like.
I would drop Stitch in Time - that card has never been good. Replace it with Time Warp if you want to keep the extra turn effect.
11 CITPT (ETBT?) lands seems like a lot. If you're going to be adding basics look at those first. You also seem rather mana-lite actually, considering how much mana you seem to require to start doing anything significant. If you can get ahold of them, Mana Vault, Grim Monolith, Thran Dynamo, Coalition Relic, and Tezzeret the Seeker are all good options.