Green was delighted with the Mage Tower after the merger. None of its functions had weakened, and he could carry it wherever he went. Other mages had to find somewhere to house their towers. That was why Mage Towers in this world were rarely built on a grand scale: construction wasn't the problem. Moving them was, and that limited a mage's mobility.
A Mage Tower's reach was limited to roughly one hundred to three hundred kilometers. Even though most towers could be moved, doing so was a troublesome undertaking. Most Formal Rank mages therefore stayed in one place and rarely left their tower's reach. Without the magic it supplied, their strength would plummet, leaving them in considerable danger.
Green faced no such restriction. Once the tower entered the Graveyard and merged with the Magic Guild to form a new Mage Tower, every damaged part, every component needing repair, and every magical Rune that needed reinscribing became as good as new. He no longer had to raise funds or spend time repairing it.
At the top of the Mage Tower stood what looked like a huge metal antenna, with a magic orb wreathed in purple light floating at its tip.
It was the tower's built-in Mana Cannon. According to the Graveyard's attributes, the [lv3] Mana Cannon had an attack rating of [550], more than ten times that of an Undead Cannon. It was a formidable weapon for defending a city. Its drawback was its painfully slow rate of fire: one shot every five minutes. After each shot, it had to recharge, consuming [10] Psychic Energy each time.
With this fearsome weapon in the Graveyard, Green felt much safer. Even if a powerful Advanced Formal Rank enemy burst from the gray fog surrounding it, the Mana Cannon would give him a fighting