[@Krein]
The bullet hit, and seemed to blow the demon's head to pieces. However, within mere moments it had reformed from a strange dark goo. So this being was capable of regeneration at high speeds. That would make it nearly impossible to leave any form of lasting injury. He would either need to find a weapon capable of inflicting permanent wounds, or he would need to find some method of containing the demon. Banishment was a last resort - it would simply delay the being's return to this plane. He went through his options in his head. As long as he remained unseen he would be able to-

Oh shit.

The demon had teleported in front of him. A tendril sliced downwards, ripping Fullbringer out of his hands and throwing it off the side of the building. Even as the second blow moved for his face, however, Shiro seemed to dissolve into a blue flash. The falling Fullbringer also disappeared, returning to the Arsenal. Shiro had reappeared a few meters away from Abbadon, even as a blue glow seemed to encompass his left eye, visible even through the helmet's visor. The Absolute Eye, a portal technique that allowed him to observe everything around him at once. With full 360 visibility and the capability to observe events from kilometers away. It vastly increased his capability to avoid incoming attacks, and together with his teleportation made him nearly impossible to hit.

The issue remained however, that Abbadon seemed nearly completely unfazed by physical attacks. And Abbadon't endurance would be far beyond that of Shiro, who -despite his training- was merely human. This fight would need to end relatively soon, because in a war of attrition Abbadon held the clear upper hand. The first order of business would be to find the demon's weakness, and then exploit the shit out of said weakness.

Once again disappearing in a flash of light, Shiro avoided the blast of energy. His Absolute Eye showed him the effects of the blast, and he already knew his armour would form little resistance against such an attack. If he was hit, it was all over. One mistake, and he could be turned to a fine red mist. His armour dissipated, leaving him wearing a tank top and cargo pants. Easy to move in, and far lighter than the reinforced kevlar plating. This was a battle in which agility and exhaustion played key factors, armour would only lower his chances. It was important to adapt to any circumstances that might occur during a fight, for which Shiro's power was ideal.

Dual submachineguns formed in his hands. Specially modified devices designed to have the bullets teleported directly into them. Shiro was able to fire an infinite stream of bullets without reloading, his power supplying all the ammo he needed. He shot silver, cold iron, even a single golden bullet at Abbadon. Metals to which arcane properties were often attributed, any of these could form a weakness. Even as he zapped from place to place to avoid Abbadon's attacks, he maintained a constant stream of bullets in order to find what Abbadon's weakness might be, and in order to force him to constantly regenerate. Some regenerating beings were only able to regenerate for a certain period of time or amount before their power ran out.