I missed my birthday ask but I really want to know; were any cards ever designed for Mirrodin Pure? The Darksteel looking Platinum Angel artwork is too beautiful to not have equally gorgeous mechanics with it.
We had no plans to ever do Mirrodin Pure so no cards were ever designed for it.
Would you be interested in expanding on you recent Ask about Kiora and rating all the planeswalkers for Commander?
I already discussed why I think Venser, Nicol Bolas, and Elspeth, Sun’s Champion are good in this post, so here are my thoughts on a few other playable planeswalkers. Generally, a good planeswalker needs to have an immediate effect on the board. If you have to wait a turn or more to do anything worthwhile, then a planeswalker is probably not worth your time (exception: Elspeth Tirel); with 2+ opponents, counting on a planeswalker to survive until your next turn is often a losing proposition.
Besides having the ability to function as a Nevinyrral’s Disk, Elspeth 2.0 is the second-best token-generating planeswalker in the game, after Elspeth, Sun’s Champion. Her +2 isn’t that great, but the combination of her other two abilities are enough to make her strong enough for Commander by offering two different routes to board advantage.
One of the most important, yet often unsung, aspects of deck building is your mana base.
While your creatures and spells are the flashy pieces that will propel you toward victory, your three-color control deck probably wouldn’t be able to win too many games if the only lands you could draw were Plains. Competitive Magic is commonly a game of small edges, and putting that little bit of extra effort into your mana base can be the difference between going 6–2 at your local PTQ and winning the extra game necessary to clinch that Top 8 slot.