If you have a radiant elemental at turn 10 on the board you can double surrender to madness and then play this and play something else for 6 mana .... if i understand correctly. Good days for all classes
you know what? this wouldn't be half bad in a tempo shudderwock deck (without Grumble).
Sure, it would delay Shudderwock by a few turns, but then you play it and you get 3-4 6/6s on the board (plus freezes, hagatha aoe etc) and good luck to your opponent answering it with 6 mana available.
One of the coolest cards they've ever printed. Druid's also have the ability to play around this by saving a Wild Growth and/or a Nourish for when after this is played, and because everyone will be playing this card, you will probably have to get good at playing around this.
Shudderwock and Mecha'thun are getting hit really hard here.