my commander cube WIP (Cube) [Revision 15]

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
-creatures that break the singleton rule (like "Shadowborn Apostle") have all their copies drafted together
-non legendary creatures that partner with each other can be your commander together as if they were legendary
-some properly creatures (like "Yore-Tiller Nephilim") may be used as your commander as if they were legendary
-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)
-if a commander has an ability that cares about a specific creature type and whose conditions can't be fullfilled by the commander alone (for example, the upkeep trigger of "Tovolar, Dire Overlord" which needs at least 2 other werewolves/wolves) that commander is marked as a tribal commander, players with a tribal commander may cast "Arcane Adaptation" from outside the game without paying its mana cost as a pregame action
-every player starts the draft with "Sol Ring", "Command Tower", "Arcane Signet" and "Cromat" in their drafted pool; Cromat is intended to be used only if a legal deck can't otherwise be created from the drafted cards

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 they draw a card, if that player guesses wrong they discard a card

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