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).