Queens Sensor core is a must and you can consider some location to provide some variability to your strategy
Lithoform Engine You can get a ton of extra value out of your deck with Lithoform Engine, since it boosts almost anything you put on the stack
These five cards are held back only by the fact that they are legendary, meaning that you can only have one of each in play, and they do not possess the basic land tag, meaning they cant be fetched by cards like Rampant Growth
The card sees plenty of play in EDH, though its very risky to keep losing life from your land in 20-life formats
With knowledge, you can get the best possible price for a card
Its a great compromise: I love drawing cards, and I still get the challenge and excitement that comes from having to play whatever I pull off the top