Players might not have the time or space for the subgame, so Shahrazad got itself banned to avoid problems in tournaments
The only downside is if you don't have any more creatures to bring back, you need to take a turn off by tapping it to exile 3 more, which does have a chance to miss
Besides crushing Burn, Collective Brutality also helps against Collected Company decks by taking out a mana creature and the Collected Company in their hand
In fact, if X is the first card of their program, they can't cast any card in their program, at least until new cards are put ahead of it
Kelp takes the place of forests, there's a new sea-based evasion mechanic that's equivalent to flying, and all the humans are stuck in diving suits and submarines