my commander cube WIP (Cube)

ADDITIONAL RULES
-creatures with partner (excluding partner with), friends forever, doctor's companion, companion and choose a background also have all of these other abilities (excluding companion)
-"partner with" cards and cards that meld together are drafted together
-non legendary creatures that partner with each other can be your commander together regardless
-you can have up to 2 commanders and a background in the command zone (plus an eventual companion)
-the companion adds to the color identity of your commander instead of having to be included in it
-any planeswalker can be your commander
-if a planeswalker is your commander, you may choose an instant or sorcery within its color identity as that planeswalker's signature spell (see oathbreaker rules)
-every time lord creature gains partner
-hybrid mana symbols may be considered as only one of the colors they are made of (example: "Jinnie Fay, Jetmir's Second" may be included in a mono green deck)

ERRATA
-"Lutri the Spellchaser" loses companion and gains partner instead
-"Urza, Academy Headmaster" as one of his ability resolves, any player may try to guess from which planeswalker that ability comes from, if that player guesses right he/she draws a card, if that player guesses wrong he/she discards a card

VARIANT
-regalia (see https://commandzone.com/brandon-sandersons-commander-cube/ but i made modifications)