Own copy of JiRock's Historic Cube (http://cubecobra.com/cube/overview/5e7368d540eaf0158e2360e9) to track my paper version of it.

This is a Historic Cube meant to be played on MTG Arena. Same as my Value Cube, it aims at providing a 1) changing and 2) interactive draft experience for everyone.
Some other core principles :

avoid cards that snowball if not immediately dealt with (Thief of Sanity) or win the game on their own whatever the shell around them (Teferi, Hero of Dominaria) ;
all gold cards should give an idea of what the color combination is about (The Gitrog Monster > Assassin's Trophy) ;
avoid traps, as in cards that might mislead people into drafting combos or themes that the cube doesn't support (Famished Paladin, Wicked Wolf).
Quick archetype rundown :
UW Blink
BW Hatebears
RW Aggro
GW Tokens
UB Control
UR Spells
UG Creatures
BR Sacrifice
BG Recursion
RG Ramp