just a fun little multiplayer format i like to call party tower.
it is aimed at commander players, prefferably kitchetable commander players (because the "tower" needs copnstruction and dissasembly time it is not super suitable for lgs players for example)
the rules are quite simple:
-you grab any number of commander decks (differently sleeved to keep them apart) and shuffle them into one giant tower of cards. i suggest 3 or more.
-then you grab the top 60 cards or so from the tower and put them in the middle of the table
(i think you know where this is heading by now)
-every player grabs cards from the center pile.
-have not settled on life total yet but 30 seems like a good idea since commander synergies have been thrown out the window
-speaking of commanders, (optionally) each player grab cards from the tower until that player grabs a nonland permanent, that card becomes that player's commander (yes a izzet signet can become your commander)
-color requirements are removed to prevent mana screw (basically everyone has a chromatic lantern emblem)
-to prevent manascrew furthermore if a player is suffering from mana screw that player may decide to choose a card at random from his/her hand and put that card face down onto the battlefield as if it was a basic land card)
-if the shuffled commander decks have particularily many tutor cards you may set the rules that if a player searches the tower that player waits until the end step to do so and if not done tutoring yet when getting passed the turn the player skips that turn instead
any of these rules can be changed to your liking but the idea is generally that shuffling up random commander decks not expecting this creates a fun format or rng synergies.