(Until your next turn, that creature can't attack or block and its activated abilities can't be activated.) If a card has no mana cost, its escape cost is an unpayable cost, so you can't cast it for that cost
Each card appears to be reskinned as a Final Fantasy character, boasting concept art from the Final Fantasy archives
And of course Mirkwood Bats is the nastiest of all, bleeding each opponent on both your token creation AND sacrifice
Phenax Is Critical Without Phenax: - Your high-toughness creatures just sit there
It's also interesting to note that the Myr Enforcer SWITCH DESIGN STORIES was put into the very first Mirrodin file (a partial file compiled October 31, 2001) exactly the way he was printed
What I can say about Magics first legendary wall is that I think it will create fun game states for playgroups that are already enjoying formats like Star or Emperor, but dont have the game size to support it on a given night