You'll see a collector number followed by a single letter: C, U, R, or M
There are a surprisingly high number of legendary lands available, so building a solid land base with a high number of legendary lands wont be too difficult
If a manarock has a way to turn itself into cards, pick it even if it's not super efficient
FFVII) for Battle Menu, Dion, Bahamut's Dominant and Summon: Knights of Round
Magic: The Gathering Will Debut Crystal Cards These Legendary Objects Could Make a Real Difference Final Fantasy has given crystals a critical role across the games, and whether their light or dark sides are tapped into, they are incredibly useful resources to have
The Fallout 'Mutant Menace' Commander precon would be a great place to start