While this would seem to be pretty awesome, it requires a good number of colorless creatures, or creatures with Devoid, to make this relevant on a regular basis. We have seen Draconic Roar and Foul-Tongue Invocation be playable as “Dragons matter” cards, though, so given the proper deck, this is a pretty awesome removal card. It’s instant speed, too, which makes it strictly better than Ruinous Path.
What do you think of this card? Will it be a dead card too much of the time to be Constructed viable or will it be good enough when it’s active to be worth playing in Standard?