While Mary OKills ability is significantly stronger than Ninjitsu, the mechanic to switch places isnt itself out of place in MTG
Seventeen lands is about the lowest you'll ever go in a "normal" deck, with 16 being the absolute floor
2012 Sets : Dark Ascension , Avacyn Restored , Magic 2013 , and Return to Ravnica My Pick : Cavern of Souls ( Avacyn Restored ) Dark Ascension hit the monster typal theme a little stronger than Innistrad did
In standard, Molten Vortex could provide a hedge against flooding out in a mono-red/burn deck where generating value from lands four plus (which are generally dead cards) is pretty appealing, but even so Molten Vortex might not be better than playing another two-powered one-drop creature
Attack while keeping your defenses up and aim to quickly seize the advantage
If I could have done it on my own, I would have gotten a slightly higher score