I decided on Greenland, a frozen, remote corner of the world where no one would stumble across my project. The snow-covered land would suit the tower's dark, commanding presence perfectly—and it held personal meaning, being the place I first arrived in this reality. Magical illusions and obfuscation spells would keep curious humans away, while allowing me free reign to build in peace.
The first stage was constructing the tower itself. I chose to base its appearance on Isengard's Orthanc, the black spire that pierced the sky, both elegant and menacing. Its spiral structure and immense height were perfect for magical amplification and defense.
I began the construction using my dimensional summoning magic. Layers of obsidian, reinforced with magical alloys from countless worlds, rose from the snowy ground. The material obeyed my will as if alive, shaping itself into the exact design I envisioned. Each stone, each wall, each spiral of the tower formed perfectly, in harmony with my magical energy.
With my Otsutsuki-enhanced stamina and regeneration, I could sustain hours, even days of high-intensity magical construction without tiring.
I infused the foundation with protective wards from every universe I had studied:
Marvel magic for interdimensional resilience.
DC magical wards against mystical and psychic intrusion.
Anime-derived enchantments that allowed the tower to grow and reshape itself over time.
Primordial spells from ancient grimoires to amplify energy flow and bind spirits to the structure.
By the time the first floor of the Obsidian Tower fully materialized, the snow around it had melted slightly from the heat of magical energy, and spirits began to sense the formation of a nexus of power. Some hovered nearby, curious or cautious, but I could summon and bind them as guardians when the tower was completed.
I moved to the next stage: aligning the tower with ley lines and magical currents. Each spiral of the tower connected to invisible streams of energy that pulsed beneath Greenland's icy surface. This would allow magical amplification beyond ordinary limits, channeling energy from the environment itself into my spells.
The snowstorm around me blew harder as the tower grew taller, but I barely noticed. My concentration was absolute, and every block of stone, every channel of mana, every protective ward was perfectly executed.
By the end of the first day of construction, the Obsidian Tower had already surpassed anything I had seen in any world. It was more than a building—it was a manifestation of my power, a monument to the Witch of the Obsidian Tower.
And this was only the beginning.