After attacking, the stadium in play will get discarded
Although it could be improved so that it caters for life totals greater than 40
This means that whenever you have more mana at the end of turn of the player to your right than the cards current base power/toughness, you can make it bigger (well, you can do it at any time, but you get my point)
I think signing cards help an artist in several ways
(X or Y) Whereas negation narrows a search, you can expand a search with or to find multiple terms at once, especially with a complex search where one term has a few options
Unfortunately, the shuffles are completely random, so there is no way to attempt to cheat the system with Wonder Picks