There was an audible [i]pang[/i] as Corban's sigil-turbines fine point was repelled away from an invisible surface, an interaction that taught the earth-mage several vital key points of information. The barrier wasn't magical in nature. He would have seen it ages ago if it were, and his turbine would have chigirized it into dust. To boot, it seemed it wasn't wholly physical either. Beyond the fact that the halo of light would bypass physical objects no differently than a ghost, the repel wasn't like striking against a physical object, something Corban had grown very accustomed to. It was repelled in the manner that magnets or particles repelled one another; without ever needing to physically interact. 

It seemed times had truly changed. People had sidestepped the conventional antimagic and magic setups entirely due to years of infighting, and appeared to have decided to use something entirely separate to leverage their weaknesses. Functionally, It was similar to his own Kinetic Barrier, yet lacked any of the conceivable drawbacks. Milky crimson eyes suddenly wizened with focus and realization upon divining the barriers nature, but by then it was too late.

In hindsight, Dazsos should have been worried. The diamond storm from earlier was not simply a show of power or lion chested boast, but a clever feint that hid Corban's actions -and himself- from sight. During the storm, Corban had receded under the earth, throwing up an earth clone in his place that could be remotely controlled through his affinity for the element. So long as his feet remained on the ground, Corban could sense and control it like an extension of himself without suffering any of the lag common amongst most remote controllers. It was as close to a perfect recreation as any human was capable of, down to the smudges of dirt on his robes. Even if Myron possessed preturnatural tracking abilities there was no guarantee he'd see through the feint, given Ishtalle worked marvelously as a metameterial!

Speaking of surprises, the clone had one of its own! As the great-lance was deflected, the force delivered back was enough to trigger the doppelgängers' spell-trigger. Its thoracic hydraulically bursted forward, releasing the source of the rapidly growing tundra about him; a metamagical hyper-cryogenic fluid that would explode outward in a wide 30 foot radius, taking all of the water that Myron thought appropriate to assault him with and freeze it into more of itself. In terms of explosions, instead of washing the land in scalding kinetic energy, it drew it all away. Everything caught within would be frozen in time, which very well could include his book! Lightning and fire could dent, but never melt the structure, as their bite was considerably lessened. The air just above the barrier was now crowned in half an igloo, shimmering prismatically like beautiful crystal. 

Simultaneously, the real Corban would make his dazzling re-entry, but from where? The most logical, and only possible place; beneath Myron! The earth beneath him parted like sand and made an opening just large enough for Ishtalle's matte-black sheathe to pass through as it was shot with no small amount of force to strike Myron at point blank range in the solar plexis. Given laws of physics and the angle of the shot, unless Myron weighed over 300 lbs, even if he blocked he'd be sent skyward, with either his bones or the sheathe shattering and splintering. Ishtalle's refractive Damascus-like edge followed almost immediately after, both blade and master geared to shishkabob him through the back. Surrounded by carboniferous material, Corban was wrapped in a thin, but resistant shell of ceramic-coated diamond, ishtalle's blade sluicing through a blade-sized slit in the phalanx.  From this angle, even if his book wasn't caught in the tundra, both his body and his barrier would be in the way. Even if he dropped his barrier, the air that had iced over was thin, but incredibly resilient, and also in the way. It would take a whole second or two too many to call the book back to his side or alter its positioning enough to have any real effect on Corban's actions.