Those are arguably the most powerful mill spells, since in the right archetype they immediately lead to a combo win
The only requirements are that the platform is flat, waterproof, and preferably has a lip around the sides so the card cant slide off Set your platform down in the middle of the hydration box, put your card on it, and close the lid Wait 30 minutes and check on the card
1) draw 1 card for each, then special summon from your hand or deck "Prinsychic Magus" [/spoiler] [spoiler=Prinsychic Tundra] This card's name is treated as "Prinsychic Shrine" while on the field
It's a very strong and useful anti-creature tool that will shut stuff down in a very useful way
Although it does come with the drawback that you take the same amount of battle damage as your opponent, you can combine it with cards such as Impenetrable Attack, which prevent you from taking battle damage that turn
Anyway, here is the report there were 5 Swiss rounds and no top cut