Is it possible to move up leagues?

[Ja Karta]

This is interesting. How does one delete their old account? Is it not tied to game center profile?

Slightly related note: is there a way to maintain more than one account?
Say for two different people sharing a phone or one person who sometimes likes to play experimental games (e.g. using brambles extensively or heavies, etc.) to test ideas out, but also like the option to play seriously against matched competition.