Technowizard

The Technowizard is the fifth Zard of Black Citadel, appearing in difficulties Moderate, Normal, and Hard. They wield a staff full of electric power (in which PenguinDoc said is fake lightning) which does high damage with fast attack speed. Their offensive capabilities are not as frightening as their abilities, as upon getting close enough to a building, they will do one of two abilities:

Lightning - Make a warning and indicator on the target, and strike the building with lightning after a delay, dealing 200 damage. Will not target walls, buildings already being targeted by Lightning, or towers with lower than 250 HP.

Portal - Make a warning and indicator in a position, after a delay, create a portal that will summon 3 Macemen, and then close. The Macemen will target the crystal.

Portal isn't terrifying if you have back up towers such as Tesla Tower or BETTYs, but Lightning is terrifying if your frontlines consist of said 250 HP towers, leaving them with little HP that can easily be destroyed. It is recommended to have a Robo Bully along with tanky towers such as BETTY in the frontlines.

Just like Arbalists, they pose a true threat to Robo Bully if they group up, hailing many electric projectiles towards it. As such, you must prevent most if not all Technowizards from grouping up together.