To be clear, this isn't an apples-to-apples comparison, but it's not terribly far off
Use Raffine's Silencer's power as it last existed on the battlefield to determine the value of X
That is why I propose the following idea: WotC used two sheets, one with 77 commons/Basic Energies and 44 uncommons, and one with 77 commons/Basic Energies and 44 rares
The color combo is full of noncreature spells, wheels, fliers, things that draw you cards, things that do things when you draw cards, and everyones favorite: counterspells
You can check out our guide on how to build an MTG Commander deck to see how much to stick in there, as well as how many MTG lands, removal, or MTG mana ramp cards you should include