I don't understand why you're running Gilded Drake as something to put into play with Show and Tell. Normally that is something that you would play to counter someone else's Show and Tell (assuming that they're putting in creatures). If you just want to steal your opponents creatures then run Bribery instead.
Most Legacy decks that are straight blue are putting Omniscience into play and then playing Enter the Infinite (you can see a thread about the deck at http://www.mtgthesource.com/forums/show … OmniTell).
If you are open to blue/green, I really like Turbo Eldrazi. Something like http://deckbox.org/sets/241273 With Turbo Eldrazi, the Show and Tell target of choice is Primeval Titan, which then helps you get the land needed to hard cast your Eldrazi. Putting the Eldrazi into play via Show and Tell won't trigger their abilities that occur from being cast, so you have to be careful about why/how you are getting them into play.
If you did end up going with blue/red and Sneak Attack, then something like this deck is an OK option http://deckbox.org/sets/286497
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