This would probably cost more than 5 since black doesn't get control magic often, and you can't respond by bouncing or disenchanting. I know there's a non-black restriction, but saying "It doesn't work on 20% of the creatures" doesn't make people feel better when it works on their creatures 100% of the time.

That being said, this is good design space. It's not the first time I've seen this pop up, but, you know, that's a good sign that people would like to see your mechanic exist.

For Challenge # 033, following Tenacious Tenacity.

And yes, I agree this is nice. It's the same idea as Peculiar Soulwrangling, but I think it probably is printable in monoblack (perhaps at 6 mana as jmg suggests). I don't know why jmg says this can't be worked around by bouncing, though.

Me either. :S

I find it interesting that there are 3 distinct versions of this on here. Chronologically we have
Daimon's Revenance by Darkheart. Then
Peculiar Soulwrangling by Alex
and now this.
And the interesting thing is that they were all costed the same - which to me, says that this is probably about right for this effect.

(Technically, Peculiar Soulwrangling costs for this effect. By the way, in most sets, I would consider that card to be first pick in draft... even if I didn't plan on adding blue.)