You might like The Sword Released
Budget Sleeves If you cant afford to spend exorbitant amounts of money on card sleeves but still want to properly protect your cards while playing or just showing them off, then the BCW Deck Guards are your answer
With Kaladesh, I think its possible to rely on having a wider range of card types to fuel Emrakul, but obviously it wont happen as quickly
The other unique ramp piece to be aware of is The Celestus, a legendary artifact that costs three mana and can tap for any color of mana , just like Commander's Sphere
She's a very strong fun thing
When it comes to doing a quick and dirty expected-value calculation of your own, the formula is the same for rares as for mythics: add up the value of all of the rares in the set, divide by the total number of rares in the set (almost always 53), and then multiply by the number of rares you should open in a box (31.5, with the other 4.5 rare slots being filled by mythics)