They are some of the rarest pulls in the set and that always leads to a hefty price tag on the secondary market
Pia Nalaar, Chief Mechanic Pia Nalaar, Chief Mechanic isn't my favorite energy sink since flooding the board with vehicles can be underwhelming, but its an excellent source of energy production that can make up to 6 energy per turn
Liesa, Shroud of Dusk Here you have one of the best lifegain commanders in Orzhov, Liesa, Shroud of Dusk
After the printing is done the final step is to hit the card with some more spray fixative
There's a fantastic article on the logistics of such a cube called - The Proper Way To Do Two-Player Cube Drafts, where the author breaks it down in great detail, and I suggest you check it out
Hunter's Insight and Harmonize keep the cards flowing so you dont run out of threats