The area in the middle is the current deck you're working on
Each stage has several Battle Challenges tied to it and completing each battle for the first time will net you Player EXP, Shop Tickets, and Pack Hourglasses
Number 19 Language English Legal Formats Commander, Legacy, Modern, Pauper, Pioneer, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Standard, Timeless Rulings (9/20/2014) Warrior creatures you control as Rush of Battle resolves gain lifelink in addition to getting +2/+1.
To maximise the power of Mental Misstep in a deck you are advised to have some filer and/or card quality effects so that you can replace it once its value is diminished
Getting Started with Cube The quickest way to start playing Cube is to research, identify, and obtain the cards you want to run