The value is generally tied to the card's playability in eternal formats like Commander
all you need to know for Swinging Ship is you need to open the attraction, roll a 6-sided dice, and get a 2 or a 6 during your first main phase, and then you get an additional combat phase after your first one
The general categories and ratios are: Lands 34-40 Ramp 10-13 Card Draw 10 Target removal 6-12 Board wipes 2-5 Graveyard Recursion 2 Graveyard Hate 1-2 Tutors 1-2 Finishers/ Surprise /Alternate win conditions 1-2 My personal experience and belief is that there should be at least one more category 10
Cycling ( , Discard this card: Draw a card.) When you cycle this card, destroy all artifacts and enchantments
Lugia & Ho-Oh The two main legendary Pokmon are Lugia and Ho-Oh, the mascots of SoulSilver and HeartGold repsectively
If the Prize count is equal, players enter sudden death, with the win going to the first player to take a Prize