The die must have six equally likely outcomes: 1, 2, 3, 4, 5, and grapefruitI mean 6
Stompy decks in Legacy use it to throw stax pieces like Blood Moon and Chalice of the Void into play early, but plenty of decks can make use of a land that puts them a full turn ahead on mana
If Jacked Rabbit leaves the battlefield while its last ability is on the stack, use its power as it last existed on the battlefield to determine how many Rabbit tokens to create
It seems innovative enough, but the difficulty of tracking which doors are unlocked can be a headache (Strike three!), given other things that we need to track on the battlefield
Then, All-Out Blast discards cards from the top of your deck until you have just one card left
Combine these things together, and it seems like Blue-White Mill actually has a pretty reasonable matchup against a lot of the format