The Circle Undone doesn't just throw monsters at you
The popularity of this game seems to be on a bit of a downturn, as my primary LGS stopped selling packs of it years ago
Said support is applied only to Fish "Shark" monsters, which comprises every Main Deck monster with "Shark" in its English and Japanese name, with the exception of "Corroding Shark"
It should be easily predictable what everyones voting for based on the boardstate, and the mind control effect is only taking small creatures
This has much the same effect on how fun the set ismore decision-making and less expensive cards stuck in the hand, which means more interesting games
309.5a If a player ventures into the dungeon while they own a dungeon card in the command zone and their venture marker isnt on that dungeons bottommost room, they move their venture marker from the room it is on to the next room, following the direction of an arrow pointing away from the room their venture marker is on