As an upper limit, assume that eight drafters will need 184-200 maindecked, nonland cards (23-25 spells apiece), theoretically leaving the remaining 176 to 160 cube slots open for mana-fixing
Whenever your Ring-bearer becomes blocked by a creature, that creatures controller sacrifices it at the end of combat
In addition, each card type has its own set of subtypes that can only correlate to that type
In the current Standard, Guilds of Ravnica has the two best common creatures to fit this mold even if they barely pass the test
Since then, Path to Exile mostly disappeared from every Modern deck and was replaced either by Prismatic Ending or our #1 placed card
Final Thoughts There will always be disagreements over what people think are the top cards for any list