Welcome to the forums!
Please, before posting a deck, make a quick view if there aren't too similar ones. To do that, put the card code of the basic cards (in your case poison + sunfial + SoD) in the Tio and Quartet Decks topic's search bar (upper left).
If you find a rather similar deck, don't post yours in a new thread, because the forum gets "double threads".
In your case, take a look at Poison Dials deck. If you feel yours is better in any aspect, post it as a comment in there!