Nether Watchtowers

What is it?

They are similar (Vigilance) towers, which protect the fortresses, they have a similar resemblance to the "END" towers, in which they are shaped like a tower with Nether bricks, in the center of the tower head levitates an object with symbols, which symbols from the distance of an intruder as the player shoots fireballs. In addition, it can be destroyed as it is done in the End.

Why?

Looking for Blaze's rods will become more challenging.

How?

These Towers will be more frequent in more complete "Strengths".