Dark Ritual and Phyrexian Tower get your rocks and threats out a turn or two early, and the easiest cuts are the weakest lands and a filler creature or two you never miss
I'll also discuss the different sizes of cubes, format variants (such as commander and pauper cubes), some tips and tricks, and a list of resources and communities devoted to the format
Either you destroy a multicolored permanent (which are everywhere) or you have a silver bullet hate option for Voltron strategies
Key factors that determine value beyond rarity include: The Reserved List: A promise from WotC not to reprint certain old cards, creating a finite supply
You must pay all costs and follow all timing rules for lands played and spells cast from the top of your library this way
Equip it to a Godo, Bandit Warlord and you'll have infinite combat steps, or you can equip it to a Timestream Navigator for unlimited extra turns