Again the foe's agility had allowed him a narrow evasion - as he veered to the left of the drill, leaving only his clothing in harm's way. Sighting the given opportunity, Alphonse had then leapt forwards, ready to force his blade against the narrow remains of Istasis' defence.
"No promises indeed..." The angel had hoped not to stand in again, but such a reckless stratagem warranted his attention.
"No promises broken," the demon corrected his partner's pessimism. "I only needed to prompt him, was all."
"I seek a greater opponent than this."the winged figure turned away in disgust. "No 'prompting' will amend this fodder for Liaison's amusement. Would I not want to entertain our host with the Warrior's death?"
"I seek for my own mortality; While I just wish for my progress, correct?"
Hesitantly, the angel nodded, folding his arms. "So this way, I can have both. I like to think I am my side of reason," The demon ended his point with a knowing smile.
"It is alien to my reasoning," he had to disagree, "but it is too late not to abide..."
Having twisted upon making the jump, Istasis was able to cover himself for most of the blade's travel; his right arm retracted naturally, no longer resisting the wind, while his left remained as it were, using Sine's shaft to keep the blade at maximal distance from his upper body.
Given his foe's agility, it was almost enough. Rolling off of and past the cylindrical shaft, Alphonse Jr. all but nicked the right of Istasis' waist just as the foe travelled past.
Within his mind, the damage had been projected upon the two entities as well. The angel shot a glance at the second minor cut, located beneath his arm.
"Pitiful..." he exclaimed, scoffed loudly - and would have boasted much more, if not for catching sight of the demon's widening grin."I would not underestimate him so much."
Almost instantaneously, the cut lengthened.
Pulsing-white glares of doubt and concern were shot across the corrupted expanse.
"...Maybe this has paid off after all."
And widened. Seven times larger than the initial wound - save for a strand near his middle torso, which Sine had covered from. Although he had avoided the brunt of the chi blast, the remainder was able to cut into his dense avatar with ease; a shadowy line now spanned two-thirds across his front, tainting his navy coat with gaseous blood. While it did not reach to his back, it was considerably deep at his right side - just enough for most humans to consider fatal.
"Idiot." Under heavily exasperated breaths, this was but a rough summary of the timeless slander hurled at his partner. The demon merely leaned on his wall without response, smiling ecstatically to himself with his left hand sunk inside his virtual wound - straining it, even, as if the metaphoric pain could be amplified. After countless threats of seals and banishment, it had been too long since he had indulged in true, physical pain; and within the confines of his mind, he would thoroughly savour every fraction of a moment it lasted...
The angel dived, wings fluttered. A swift mid-air spin-kick sent the demon hurling over shards of dismantled brick, swiftly bringing him back to his senses.
"I will not take defeat from this shameless mortal." Speaking down at the nuisance, he lowered to the ground just as rapidly. Very soon did he regret the painful black scar across his leg - the result of making contact with his other half - but did well to ignore it all the same.
"I will see to this injury for now," his words were orderly, and he referred to their outside wound. Under his watch, this fight would not be stretched any more than needed. "Kill the man in ten seconds, else I may do it myself."
"I suppose I can no longer refuse." The demon righted himself from his sprawl - still smirking upon thoughts of his shattered fantasy, with his right hand examining the whitened scar along his jaw. "He has disappointed me also. Now I feel inclined to repay him..."
"...It is not as perfect as I hoped." Likewise, his letdown was voiced to Alphonse, at the same moment he was struck by the blade. His voice was filled with sadistic intent, which would multiply as the pain began to kick in. Selflessly he had lured Alphonse with an open guard, and he had but a single shot to pull it in his favour.
Alphonse had jumped forward to perform his strike - which put him in direct range of the tendrils which followed Istasis, now reanimated outside the influence of his disruptive aura. Already veering in front of the man, they had but to turn outwards a single foot to present an unavoidable danger. Aided by Istasis' omnidirectional sight, they were placed in line to catch Alphonse's right thigh and left shin respectively; either to cleanly hook around his limbs, or impale them if he tried to shift in mid-air. His strength was doubted to compare with their solidness, and his chi would again have no direct effect. Assuming the grab was successful, he would swiftly be dragged backwards - face-first along the broken ground - until Istasis made his own difficult landing.