(Playing a land doesn't use the stack.) You pay all costs and follow all timing rules for cards played with the permission granted by Urianger Augurelt's last ability
Sometimes pricing rare Japanese Pokemon cards can be very hard, but if you follow the simple pricing formula above, you can usually have a good idea of what a card is worth, regardless of whether you are looking to buy or sell
The answer is I have no idea
Jokes aside, these cards actually do represent some difficult-to-parse rules scenarios
That ensures the safety of massive board states, which is important for a deck not running any counterspells
Beyond that, Ditto rarely gets its chance to shine in the modern TCG , but here it truly does as the overall best card in the set