Find all pieces of helpful information around MD

[Chewett]

I need someone to go through MD and find every piece of documentation we have. For each piece you need to write a line saying:

<What it is> - <How to get to it> - <Direct link if available>

Example

Fighting docs - press X, then Y, then z - magicduel.com

 

For the person that gathers the most amount pieces of information found here 1 gold coin. Please post all the information and links you can find here in this post.