Guess I'll join this party. Here's the final(spoiler: not really - it happens in the prologue) battle between Gustav and Irene from The Essence of Villainy.
"From here on out, Gustav wasn't sure what awaited him. His scouts had reported a rather stubborn advance from the Church's pup as she had - from what Gustav had heard - cleared out entire swathes of land, felling down everything in her way... including the vanguard of Gustav's army and every bit of an enchanted dark forest that Gustav had taken care to plant. There went his future-oriented plans of recruiting some magical beasties. He'd never have a pet, now.
As if to punctuate Gustav thoughts, lightning struck the forest. A light occurrence normally, but considering what the church lackeys were capable of, Gustav found himself tensing up. Preparing. Flexing his hands again, as he ran.
Azure light struck down again. Sooner than Gustav would've thought possible, forest began to catch afire. He knew from experience, though, that these azure bolts contained enormous amounts of heat. Knowing that, he watched as large flame-tongues erupted from the middle of the forest, soon spreading to either side with a speed abhorrent.
Gustav put his hand on the suit. This one had been specifically enchanted to resist temperature changes and common weaponry. However, there were limitations to both. The enchantment would stop Gustav from getting fatally wounded from a shallow attack, but a decisive attack would still do the trick. He suspected that the Church pup's armour had been enchanted the same way, albeit hers was likely to grant a better defense against normal weapons. The downside of that being her mobility would be highly impaired.
Gustav stopped running, fixing his eyes at the edge of the forest aflame. A glimmering light had appeared there, drawing closer. It was female in shape - armoured, the sword in hand almost trailing the ground.
Gustav lowered his stance and waited.
Not a few seconds after, the woman's inquisition assaulted him. "Are you Gustav, the Dark Lord?"
Gustav exhaled in a controlled manner, flexing his hands. "What of it?"
The woman pointed her sword at him. "Then I will take your head. For my sisters' lives, you deserve to die."
A memory flashed in Gustav's mind. A young girl on a stake, burning in the flames. It had happened many times, and always with a cold exhilaration.
"You will try," he said, "but I can't say much for your chances."
He had to engage in trash talk. He had to enrage her. Make her lose control. Taunt the church witch to her death.
Since she was far tougher than all the others. Since she had trained all the others.
And she could actually kill Gustav.
The woman in a shining armour stepped out from the flames. Gustav could now see her chiseled jaw, as well as an appearance fashioned by years of adversity and inhuman training.
She raised her voice, and it wasn't one bit shrill or taken with anger. "You fancy yourself a victor?"
"I defeated every one of your sisters," Gustav hissed. "I took them alive. I put them through the torture chamber and burned them on a stake. I will do the same to you."
The mask on her face showed signs of cracking. "You will die, Dark Lord!"
And then, the woman stopped herself. Took a deep breath. Straightened herself. An apparent emotion had taken over her face, but her body obeyed another tune. Ever so slowly, she raised her sword, pointing it at Gustav.
The air around the woman crackled. Gustav felt a tingling sensation; one that he knew would become worse the closer he got to the woman.
He willed his gauntlet to activate. Its red lines glowed with a dark-red radiance, and light began gathering at the end of every finger. Gustav clenched his fist, and the crimson lights coalesced into a ball of energy, pulsing like a heart.
He threw the crimson-pulsing ball at the woman, then rolled forward as lightning came down at the spot where he had stood just before.
He ended his roll with a sideways pounce, his cape granting him unnatural dexterity. He coalesced the light into his palms again, and sent it at the woman in three fast flicks. Two orbs were deflected, and the last one met with her sword, the split pieces narrowly avoiding her head and crashing against the treeline behind her. Now there was no treeline.
Gustav quickly gathered his surroundings. The woman had closed quite the distance, despite the supposed mobility impairment. By the hells, no! She's closing in for a melee.
Gustav rolled again, a wave of heat striking his back as lightning assaulted his previous spot.
And now the azure rays rained down on all the spots where he could be, thunder roaring. The ground shook. Gustav quickly wrapped his cape around himself, vaulting into the air and... disappearing.
At least, from the woman's senses. This had been the trick by which he had gotten his first mark - the first "sister" of lightning. Although Gustav didn't hold any hopes of it working against the adversary before him, it would at least buy him time.
And by the hells, was she close now. Only some twenty feet away, and still she kept casting her lightning down all about, raising up a veil of dust and mud flecks. Gustav grimaced, cape around himself.
The other sisters from before hadn't been able to summon this much lightning. Clearly, something was wrong with her.
Gustav looked down at his hands, although he couldn't see them now. I thought this fight would take a bit longer, he ruminated. Perhaps so that whatever support Aries sends would arrive in time. But they couldn't defeat her, either.
Gustav's forehead produced cold sweat. Do I really have to use it? I don't even know if the incorporation with the artifact was successful.
He saw the church witch looking around, then stand rigidly, lifting her blade up towards the skies. A dark foreboding smote Gustav's shoulders, weighing him as pure-white storm clouds began forming above her.
Gustav began to run. This was something he had never seen before, but he had his suspicions. Each church pup had been greater in combat prowess than the others before her. Their techniques had become sharper, even receiving new applications.
The last church pup that had seen Gustav disappear had countered him using a wide-range technique that had barely left him alive. She had induced it by ramming her sword down at the ground, and somehow, the earth had become a conduit for the lightning's wrath. But this woman wasn't about to strike ground, instead lifting her sword up to the skies.
Gustav saw lightning strike down on her sword. One time, two times. Thrice.
Each bolt imparted the sword with a greater glow, and upon the third strike Gustav couldn't look at the sword anymore.
In one swift movement, the woman turned her sword downward, ramming it at the ground.
The next few actions were a blur in Gustav's mind.
He appeared behind the woman, a swirling, nervously palpitating purple orb in hand. He could feel the orb pull him, pull her, as if capable of inhaling the whole existence within its center.
Being too close for comfort, he didn't even bother throwing the orb, but instead pushed it on the woman.
By inhuman reflexes and strength, the woman turned her strike midway through, swinging a slash that caused Gustav's knees to buckle as he met it.
It was her radiant sword against his purple sphere of unstable power.
A cyan light flashed between the two, suddenly expanding. Instead of the orb erasing the woman - as Gustav's plan had been - a whirling cyan depth manifested into the air and wrenched the two apart with an irresistible strength. Their stalemate raveling like a human skull under a mace, the two were engulfed in a light that took their consciousness all the same."